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Finding the Fourth Proportional to 31,313.91, 43,213.15 and 17,167.66

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Solution

The fourth proportional to 31,313.91, 43,213.15 and 17,167.66 is: 23,691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.91 : 43,213.15 = 17,167.66 : x
  2. Step 2: Convert to fraction form
    31,313.91/43,213.15 = 17,167.66/x
  3. Step 3: Cross multiply
    31,313.91x = 43,213.15 × 17,167.66
  4. Step 4: Simplify right side
    31,313.91x = 741,868,726.66
  5. Step 5: Solve for x
    x = 741,868,726.66/31,313.91
  6. Step 6: Final answer
    x = 23,691.35

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