Home / 31,591.52-47,373.20-11,856.12

Finding the Fourth Proportional to 31,591.52, 47,373.20 and 11,856.12

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Solution

The fourth proportional to 31,591.52, 47,373.20 and 11,856.12 is: 17,778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,591.52 : 47,373.20 = 11,856.12 : x
  2. Step 2: Convert to fraction form
    31,591.52/47,373.20 = 11,856.12/x
  3. Step 3: Cross multiply
    31,591.52x = 47,373.20 × 11,856.12
  4. Step 4: Simplify right side
    31,591.52x = 561,662,484.68
  5. Step 5: Solve for x
    x = 561,662,484.68/31,591.52
  6. Step 6: Final answer
    x = 17,778.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.