Finding the Fourth Proportional to 39,337.23, 54,286.02 and 21,432.99
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Solution
The fourth proportional to 39,337.23, 54,286.02 and 21,432.99 is: 29,577.88
Step by Step Solution
- Step 1: Write the proportion equation
39,337.23 : 54,286.02 = 21,432.99 : x - Step 2: Convert to fraction form
39,337.23/54,286.02 = 21,432.99/x - Step 3: Cross multiply
39,337.23x = 54,286.02 × 21,432.99 - Step 4: Simplify right side
39,337.23x = 1,163,511,723.80 - Step 5: Solve for x
x = 1,163,511,723.80/39,337.23 - Step 6: Final answer
x = 29,577.88
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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.