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Finding the Fourth Proportional to 31,257.92, 43,137.12 and 17,831.36

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Solution

The fourth proportional to 31,257.92, 43,137.12 and 17,831.36 is: 24,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257.92 : 43,137.12 = 17,831.36 : x
  2. Step 2: Convert to fraction form
    31,257.92/43,137.12 = 17,831.36/x
  3. Step 3: Cross multiply
    31,257.92x = 43,137.12 × 17,831.36
  4. Step 4: Simplify right side
    31,257.92x = 769,193,516.08
  5. Step 5: Solve for x
    x = 769,193,516.08/31,257.92
  6. Step 6: Final answer
    x = 24,607.96

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