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Finding the Fourth Proportional to 31,081.23, 42,891.93 and 16,934.04

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Solution

The fourth proportional to 31,081.23, 42,891.93 and 16,934.04 is: 23,368.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,081.23 : 42,891.93 = 16,934.04 : x
  2. Step 2: Convert to fraction form
    31,081.23/42,891.93 = 16,934.04/x
  3. Step 3: Cross multiply
    31,081.23x = 42,891.93 × 16,934.04
  4. Step 4: Simplify right side
    31,081.23x = 726,333,658.30
  5. Step 5: Solve for x
    x = 726,333,658.30/31,081.23
  6. Step 6: Final answer
    x = 23,368.88

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