Home / 31,432.39-43,377.86-17,286.55

Finding the Fourth Proportional to 31,432.39, 43,377.86 and 17,286.55

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Solution

The fourth proportional to 31,432.39, 43,377.86 and 17,286.55 is: 23,856.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432.39 : 43,377.86 = 17,286.55 : x
  2. Step 2: Convert to fraction form
    31,432.39/43,377.86 = 17,286.55/x
  3. Step 3: Cross multiply
    31,432.39x = 43,377.86 × 17,286.55
  4. Step 4: Simplify right side
    31,432.39x = 749,853,545.78
  5. Step 5: Solve for x
    x = 749,853,545.78/31,432.39
  6. Step 6: Final answer
    x = 23,856.08

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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.