Home / 31,400.60-47,079.45-10,332.90

Finding the Fourth Proportional to 31,400.60, 47,079.45 and 10,332.90

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Solution

The fourth proportional to 31,400.60, 47,079.45 and 10,332.90 is: 15,492.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,400.60 : 47,079.45 = 10,332.90 : x
  2. Step 2: Convert to fraction form
    31,400.60/47,079.45 = 10,332.90/x
  3. Step 3: Cross multiply
    31,400.60x = 47,079.45 × 10,332.90
  4. Step 4: Simplify right side
    31,400.60x = 486,467,248.91
  5. Step 5: Solve for x
    x = 486,467,248.91/31,400.60
  6. Step 6: Final answer
    x = 15,492.29

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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.