Home / 31,286.24-43,174.57-17,139.18

Finding the Fourth Proportional to 31,286.24, 43,174.57 and 17,139.18

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Solution

The fourth proportional to 31,286.24, 43,174.57 and 17,139.18 is: 23,651.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.24 : 43,174.57 = 17,139.18 : x
  2. Step 2: Convert to fraction form
    31,286.24/43,174.57 = 17,139.18/x
  3. Step 3: Cross multiply
    31,286.24x = 43,174.57 × 17,139.18
  4. Step 4: Simplify right side
    31,286.24x = 739,976,726.65
  5. Step 5: Solve for x
    x = 739,976,726.65/31,286.24
  6. Step 6: Final answer
    x = 23,651.83

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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.