Home / 31,731.43-43,789.38-17,391.83

Finding the Fourth Proportional to 31,731.43, 43,789.38 and 17,391.83

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Solution

The fourth proportional to 31,731.43, 43,789.38 and 17,391.83 is: 24,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,731.43 : 43,789.38 = 17,391.83 : x
  2. Step 2: Convert to fraction form
    31,731.43/43,789.38 = 17,391.83/x
  3. Step 3: Cross multiply
    31,731.43x = 43,789.38 × 17,391.83
  4. Step 4: Simplify right side
    31,731.43x = 761,577,452.77
  5. Step 5: Solve for x
    x = 761,577,452.77/31,731.43
  6. Step 6: Final answer
    x = 24,000.73

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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.