Home / 31,527.43-43,508.19-17,380.78

Finding the Fourth Proportional to 31,527.43, 43,508.19 and 17,380.78

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Solution

The fourth proportional to 31,527.43, 43,508.19 and 17,380.78 is: 23,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,527.43 : 43,508.19 = 17,380.78 : x
  2. Step 2: Convert to fraction form
    31,527.43/43,508.19 = 17,380.78/x
  3. Step 3: Cross multiply
    31,527.43x = 43,508.19 × 17,380.78
  4. Step 4: Simplify right side
    31,527.43x = 756,206,278.59
  5. Step 5: Solve for x
    x = 756,206,278.59/31,527.43
  6. Step 6: Final answer
    x = 23,985.66

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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.