Home / 31,689.88-43,732.38-17,542.96

Finding the Fourth Proportional to 31,689.88, 43,732.38 and 17,542.96

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Solution

The fourth proportional to 31,689.88, 43,732.38 and 17,542.96 is: 24,209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,689.88 : 43,732.38 = 17,542.96 : x
  2. Step 2: Convert to fraction form
    31,689.88/43,732.38 = 17,542.96/x
  3. Step 3: Cross multiply
    31,689.88x = 43,732.38 × 17,542.96
  4. Step 4: Simplify right side
    31,689.88x = 767,195,393.04
  5. Step 5: Solve for x
    x = 767,195,393.04/31,689.88
  6. Step 6: Final answer
    x = 24,209.48

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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.