Home / 28,432.38-39,237.72-16,502.31

Finding the Fourth Proportional to 28,432.38, 39,237.72 and 16,502.31

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Solution

The fourth proportional to 28,432.38, 39,237.72 and 16,502.31 is: 22,773.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.38 : 39,237.72 = 16,502.31 : x
  2. Step 2: Convert to fraction form
    28,432.38/39,237.72 = 16,502.31/x
  3. Step 3: Cross multiply
    28,432.38x = 39,237.72 × 16,502.31
  4. Step 4: Simplify right side
    28,432.38x = 647,513,019.13
  5. Step 5: Solve for x
    x = 647,513,019.13/28,432.38
  6. Step 6: Final answer
    x = 22,773.79

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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.