Home / 31,723.20-47,568.60-11,731.68

Finding the Fourth Proportional to 31,723.20, 47,568.60 and 11,731.68

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Solution

The fourth proportional to 31,723.20, 47,568.60 and 11,731.68 is: 17,591.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.20 : 47,568.60 = 11,731.68 : x
  2. Step 2: Convert to fraction form
    31,723.20/47,568.60 = 11,731.68/x
  3. Step 3: Cross multiply
    31,723.20x = 47,568.60 × 11,731.68
  4. Step 4: Simplify right side
    31,723.20x = 558,059,593.25
  5. Step 5: Solve for x
    x = 558,059,593.25/31,723.20
  6. Step 6: Final answer
    x = 17,591.53

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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.