Home / 31,502.20-47,250.60-10,440.04

Finding the Fourth Proportional to 31,502.20, 47,250.60 and 10,440.04

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Solution

The fourth proportional to 31,502.20, 47,250.60 and 10,440.04 is: 15,659.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,502.20 : 47,250.60 = 10,440.04 : x
  2. Step 2: Convert to fraction form
    31,502.20/47,250.60 = 10,440.04/x
  3. Step 3: Cross multiply
    31,502.20x = 47,250.60 × 10,440.04
  4. Step 4: Simplify right side
    31,502.20x = 493,298,154.02
  5. Step 5: Solve for x
    x = 493,298,154.02/31,502.20
  6. Step 6: Final answer
    x = 15,659.17

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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.