Finding the Fourth Proportional to 20,097.14, 27,756.27 and 15,614.08
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Solution
The fourth proportional to 20,097.14, 27,756.27 and 15,614.08 is: 21,564.69
Step by Step Solution
- Step 1: Write the proportion equation
20,097.14 : 27,756.27 = 15,614.08 : x - Step 2: Convert to fraction form
20,097.14/27,756.27 = 15,614.08/x - Step 3: Cross multiply
20,097.14x = 27,756.27 × 15,614.08 - Step 4: Simplify right side
20,097.14x = 433,388,550.89 - Step 5: Solve for x
x = 433,388,550.89/20,097.14 - Step 6: Final answer
x = 21,564.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.