Home / 31,221.38-43,080.60-17,793.20

Finding the Fourth Proportional to 31,221.38, 43,080.60 and 17,793.20

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Solution

The fourth proportional to 31,221.38, 43,080.60 and 17,793.20 is: 24,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.38 : 43,080.60 = 17,793.20 : x
  2. Step 2: Convert to fraction form
    31,221.38/43,080.60 = 17,793.20/x
  3. Step 3: Cross multiply
    31,221.38x = 43,080.60 × 17,793.20
  4. Step 4: Simplify right side
    31,221.38x = 766,541,731.92
  5. Step 5: Solve for x
    x = 766,541,731.92/31,221.38
  6. Step 6: Final answer
    x = 24,551.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.