Home / 31,158.28-42,997.86-17,012.44

Finding the Fourth Proportional to 31,158.28, 42,997.86 and 17,012.44

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Solution

The fourth proportional to 31,158.28, 42,997.86 and 17,012.44 is: 23,476.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,158.28 : 42,997.86 = 17,012.44 : x
  2. Step 2: Convert to fraction form
    31,158.28/42,997.86 = 17,012.44/x
  3. Step 3: Cross multiply
    31,158.28x = 42,997.86 × 17,012.44
  4. Step 4: Simplify right side
    31,158.28x = 731,498,513.38
  5. Step 5: Solve for x
    x = 731,498,513.38/31,158.28
  6. Step 6: Final answer
    x = 23,476.86

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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.