Home / 31,280.38-43,165.50-17,132.92

Finding the Fourth Proportional to 31,280.38, 43,165.50 and 17,132.92

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Solution

The fourth proportional to 31,280.38, 43,165.50 and 17,132.92 is: 23,642.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,280.38 : 43,165.50 = 17,132.92 : x
  2. Step 2: Convert to fraction form
    31,280.38/43,165.50 = 17,132.92/x
  3. Step 3: Cross multiply
    31,280.38x = 43,165.50 × 17,132.92
  4. Step 4: Simplify right side
    31,280.38x = 739,551,058.26
  5. Step 5: Solve for x
    x = 739,551,058.26/31,280.38
  6. Step 6: Final answer
    x = 23,642.65

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Double scale
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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.