Home / 39,387.72-54,353.70-23,463.90

Finding the Fourth Proportional to 39,387.72, 54,353.70 and 23,463.90

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Solution

The fourth proportional to 39,387.72, 54,353.70 and 23,463.90 is: 32,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,387.72 : 54,353.70 = 23,463.90 : x
  2. Step 2: Convert to fraction form
    39,387.72/54,353.70 = 23,463.90/x
  3. Step 3: Cross multiply
    39,387.72x = 54,353.70 × 23,463.90
  4. Step 4: Simplify right side
    39,387.72x = 1,275,349,781.43
  5. Step 5: Solve for x
    x = 1,275,349,781.43/39,387.72
  6. Step 6: Final answer
    x = 32,379.38

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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.