Home / 31,534.92-43,517.30-17,387.78

Finding the Fourth Proportional to 31,534.92, 43,517.30 and 17,387.78

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Solution

The fourth proportional to 31,534.92, 43,517.30 and 17,387.78 is: 23,994.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534.92 : 43,517.30 = 17,387.78 : x
  2. Step 2: Convert to fraction form
    31,534.92/43,517.30 = 17,387.78/x
  3. Step 3: Cross multiply
    31,534.92x = 43,517.30 × 17,387.78
  4. Step 4: Simplify right side
    31,534.92x = 756,668,934.07
  5. Step 5: Solve for x
    x = 756,668,934.07/31,534.92
  6. Step 6: Final answer
    x = 23,994.64

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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.