Home / 31,487.92-47,248.28-13,953.64

Finding the Fourth Proportional to 31,487.92, 47,248.28 and 13,953.64

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Solution

The fourth proportional to 31,487.92, 47,248.28 and 13,953.64 is: 20,937.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.92 : 47,248.28 = 13,953.64 : x
  2. Step 2: Convert to fraction form
    31,487.92/47,248.28 = 13,953.64/x
  3. Step 3: Cross multiply
    31,487.92x = 47,248.28 × 13,953.64
  4. Step 4: Simplify right side
    31,487.92x = 659,285,489.74
  5. Step 5: Solve for x
    x = 659,285,489.74/31,487.92
  6. Step 6: Final answer
    x = 20,937.73

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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.