Finding the Fourth Proportional to 23,755.40, 32,785.92 and 13,681.88
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Solution
The fourth proportional to 23,755.40, 32,785.92 and 13,681.88 is: 18,882.99
Step by Step Solution
- Step 1: Write the proportion equation
23,755.40 : 32,785.92 = 13,681.88 : x - Step 2: Convert to fraction form
23,755.40/32,785.92 = 13,681.88/x - Step 3: Cross multiply
23,755.40x = 32,785.92 × 13,681.88 - Step 4: Simplify right side
23,755.40x = 448,572,859.20 - Step 5: Solve for x
x = 448,572,859.20/23,755.40 - Step 6: Final answer
x = 18,882.99
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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.