# How To Solve A Proportion Problem This information is enough to set up one ratio comparing the number of hours worked to the amount of money made.

This information is enough to set up one ratio comparing the number of hours worked to the amount of money made.The rest of the information that we have is that next week you will be working 31 hours, and you want to know how much money you'll make for that many hours.so you need twice as much of everything to keep the ratio.

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It is important to note that you want your quantities in the numerator and denominator to be consistent in both ratios of the proportion.

We see that we did this with our example, since hours is in the numerator in both ratios and dollars is in the denominator in both ratios.

Then we set the two products equal to each other and solve for the unknown. We can use proportions to solve this problem, but first we have to construct the proportion that represents this problem.

To construct a proportion, we just need to set up two ratios comparing the same quantities and then set them equal.

Once again, we have a real world problem that we can use proportions to solve.

First, we need to construct our proportion, so we need two ratios. This gives us two quantities to put together in a ratio. A proportion is an equation in which two ratios are set equal to one another, and a ratio is a fraction comparing two quantities.

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Multiply across the known corners, then divide by the third number: Part = (160 × 25) / 100 = 4000 / 100 = 40 Answer: 25% of 160 is 40.

This tutorial let's you see the steps to take in order to turn a word problem involving a blueprint into a proportion. That's why proportions are actually equations with equal ratios.

Ingredients sometimes need to be mixed using ratios such as the ratio of water to cement mix when making cement. Then think of some ratios you've encountered before!

## Comments How To Solve A Proportion Problem

• ###### Proportion word problems - Basic mathematics
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When solving proportion word problems, make sure it is set up correctly. Once you set up your proportion correctly, all you have to do if to replace values that you know and use an x or any other variable for the value you don't know Let us solve the second proportion. I already showed you how to solve a proportion.…

• ###### Proportions - Basic examples and word problems - YouTube
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Learn how to solve proportions in these step by step examples. Check out all my math videos on…

• ###### Proportion Calculator Wyzant Resources
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If either side of the proportion has a numerator and denominator that share a common factor with a variable, the calculator will report an erroneous solution. Example 1/2 = x/x will cause the calculator to report 0 as a solution, even though there is no solution.…

• ###### Ratios and proportions and how to solve them - Mathplanet
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Ratios and proportions and how to solve them. A proportion on the other hand is an equation that says that two ratios are equivalent. For instance if one package of cookie mix results in 20 cookies than that would be the same as to say that two packages will result in 40 cookies. A proportion is read as "x is to y as z is to w" If one number in.…

• ###### Proportion word problems practice Khan Academy
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Proportion word problems. Problem. Pamela drove her car 99999999 kilometers and used 9999 liters of fuel. She wants to know how many kilometers kkkleft parenthesis, k, right parenthesis she can drive with 12121212 liters of fuel. She assumes the relationship between kilometers and fuel is proportional.…

• ###### Proportion Basics Wyzant Resources
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Solving a Proportion 1. Find what number squared is equal to 25. Use our perfect squares chart for reference. 2. Change the problem to x = the square root of 25. The resulting number from either method will be equal to x and will be the answer.…

• ###### Proportion Word Problems solutions, examples, videos
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The following diagrams show the formulas and graphs for directly proportional and inversely proportional problems. Scroll down the page for examples and solutions. Directly Proportional Problems There are many situations in our daily lives that involve direct proportion. For example, a worker may be paid according to the number of hours he worked.…

• ###### How to Solve Ratio Word Problems -
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In the known ratio, you know both of the numbers. In the unknown ratio, you only know one of the numbers. To solve for the unknown number, set up a proportion with the known ratio on one side and the unknown ratio on the other, cross multiply, and solve the resulting equation.…

• ###### Ratio Word Problems solutions, examples, videos
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The main things to be aware about for ratio problems are Change the quantities to the same unit if necessary. Write the items in the ratio as a fraction. Make sure that you have the same items in the numerator and denominator. Ratio problems Two-term Ratios. Example 1 In a bag of red and green sweets, the ratio of red sweets to green sweets is 34.…