Home / 31,337.97-43,240.23-18,588.75

Finding the Fourth Proportional to 31,337.97, 43,240.23 and 18,588.75

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Solution

The fourth proportional to 31,337.97, 43,240.23 and 18,588.75 is: 25,648.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,337.97 : 43,240.23 = 18,588.75 : x
  2. Step 2: Convert to fraction form
    31,337.97/43,240.23 = 18,588.75/x
  3. Step 3: Cross multiply
    31,337.97x = 43,240.23 × 18,588.75
  4. Step 4: Simplify right side
    31,337.97x = 803,781,825.41
  5. Step 5: Solve for x
    x = 803,781,825.41/31,337.97
  6. Step 6: Final answer
    x = 25,648.82

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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.