Home / 31,534.76-43,517.85-17,388.38

Finding the Fourth Proportional to 31,534.76, 43,517.85 and 17,388.38

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Solution

The fourth proportional to 31,534.76, 43,517.85 and 17,388.38 is: 23,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534.76 : 43,517.85 = 17,388.38 : x
  2. Step 2: Convert to fraction form
    31,534.76/43,517.85 = 17,388.38/x
  3. Step 3: Cross multiply
    31,534.76x = 43,517.85 × 17,388.38
  4. Step 4: Simplify right side
    31,534.76x = 756,704,912.58
  5. Step 5: Solve for x
    x = 756,704,912.58/31,534.76
  6. Step 6: Final answer
    x = 23,995.90

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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.