Home / 31,695.12-47,542.68-10,917

Finding the Fourth Proportional to 31,695.12, 47,542.68 and 10,917

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Solution

The fourth proportional to 31,695.12, 47,542.68 and 10,917 is: 16,375.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,695.12 : 47,542.68 = 10,917 : x
  2. Step 2: Convert to fraction form
    31,695.12/47,542.68 = 10,917/x
  3. Step 3: Cross multiply
    31,695.12x = 47,542.68 × 10,917
  4. Step 4: Simplify right side
    31,695.12x = 519,023,437.56
  5. Step 5: Solve for x
    x = 519,023,437.56/31,695.12
  6. Step 6: Final answer
    x = 16,375.50

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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.