Finding the Fourth Proportional to 20,287.59, 30,381.71 and 16,755.99
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Solution
The fourth proportional to 20,287.59, 30,381.71 and 16,755.99 is: 25,092.95
Step by Step Solution
- Step 1: Write the proportion equation
20,287.59 : 30,381.71 = 16,755.99 : x - Step 2: Convert to fraction form
20,287.59/30,381.71 = 16,755.99/x - Step 3: Cross multiply
20,287.59x = 30,381.71 × 16,755.99 - Step 4: Simplify right side
20,287.59x = 509,075,545.16 - Step 5: Solve for x
x = 509,075,545.16/20,287.59 - Step 6: Final answer
x = 25,092.95
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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.