Finding the Fourth Proportional to 31,497.49, 47,246.19 and 10,720.99
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Solution
The fourth proportional to 31,497.49, 47,246.19 and 10,720.99 is: 16,081.47
Step by Step Solution
- Step 1: Write the proportion equation
31,497.49 : 47,246.19 = 10,720.99 : x - Step 2: Convert to fraction form
31,497.49/47,246.19 = 10,720.99/x - Step 3: Cross multiply
31,497.49x = 47,246.19 × 10,720.99 - Step 4: Simplify right side
31,497.49x = 506,525,930.53 - Step 5: Solve for x
x = 506,525,930.53/31,497.49 - Step 6: Final answer
x = 16,081.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.