Home / 31,358.97-47,046.65-18,198.70

Finding the Fourth Proportional to 31,358.97, 47,046.65 and 18,198.70

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Solution

The fourth proportional to 31,358.97, 47,046.65 and 18,198.70 is: 27,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,358.97 : 47,046.65 = 18,198.70 : x
  2. Step 2: Convert to fraction form
    31,358.97/47,046.65 = 18,198.70/x
  3. Step 3: Cross multiply
    31,358.97x = 47,046.65 × 18,198.70
  4. Step 4: Simplify right side
    31,358.97x = 856,187,869.36
  5. Step 5: Solve for x
    x = 856,187,869.36/31,358.97
  6. Step 6: Final answer
    x = 27,302.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.