Home / 31,179.28-43,027.39-16,839.11

Finding the Fourth Proportional to 31,179.28, 43,027.39 and 16,839.11

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Solution

The fourth proportional to 31,179.28, 43,027.39 and 16,839.11 is: 23,237.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,179.28 : 43,027.39 = 16,839.11 : x
  2. Step 2: Convert to fraction form
    31,179.28/43,027.39 = 16,839.11/x
  3. Step 3: Cross multiply
    31,179.28x = 43,027.39 × 16,839.11
  4. Step 4: Simplify right side
    31,179.28x = 724,542,953.22
  5. Step 5: Solve for x
    x = 724,542,953.22/31,179.28
  6. Step 6: Final answer
    x = 23,237.97

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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.