Home / 28,472.31-39,294.22-15,899.49

Finding the Fourth Proportional to 28,472.31, 39,294.22 and 15,899.49

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Solution

The fourth proportional to 28,472.31, 39,294.22 and 15,899.49 is: 21,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,472.31 : 39,294.22 = 15,899.49 : x
  2. Step 2: Convert to fraction form
    28,472.31/39,294.22 = 15,899.49/x
  3. Step 3: Cross multiply
    28,472.31x = 39,294.22 × 15,899.49
  4. Step 4: Simplify right side
    28,472.31x = 624,758,195.93
  5. Step 5: Solve for x
    x = 624,758,195.93/28,472.31
  6. Step 6: Final answer
    x = 21,942.66

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Similar ratio
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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.