Home / 39,720.43-54,849.80-29,631.35

Finding the Fourth Proportional to 39,720.43, 54,849.80 and 29,631.35

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Solution

The fourth proportional to 39,720.43, 54,849.80 and 29,631.35 is: 40,917.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720.43 : 54,849.80 = 29,631.35 : x
  2. Step 2: Convert to fraction form
    39,720.43/54,849.80 = 29,631.35/x
  3. Step 3: Cross multiply
    39,720.43x = 54,849.80 × 29,631.35
  4. Step 4: Simplify right side
    39,720.43x = 1,625,273,610.20
  5. Step 5: Solve for x
    x = 1,625,273,610.20/39,720.43
  6. Step 6: Final answer
    x = 40,917.83

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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.