Home / 31,238.28-43,108.80-17,091.18

Finding the Fourth Proportional to 31,238.28, 43,108.80 and 17,091.18

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Solution

The fourth proportional to 31,238.28, 43,108.80 and 17,091.18 is: 23,585.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,238.28 : 43,108.80 = 17,091.18 : x
  2. Step 2: Convert to fraction form
    31,238.28/43,108.80 = 17,091.18/x
  3. Step 3: Cross multiply
    31,238.28x = 43,108.80 × 17,091.18
  4. Step 4: Simplify right side
    31,238.28x = 736,780,260.38
  5. Step 5: Solve for x
    x = 736,780,260.38/31,238.28
  6. Step 6: Final answer
    x = 23,585.81

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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.