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Finding the Fourth Proportional to 22,903.92, 31,605.54 and 12,831.54

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Solution

The fourth proportional to 22,903.92, 31,605.54 and 12,831.54 is: 17,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,903.92 : 31,605.54 = 12,831.54 : x
  2. Step 2: Convert to fraction form
    22,903.92/31,605.54 = 12,831.54/x
  3. Step 3: Cross multiply
    22,903.92x = 31,605.54 × 12,831.54
  4. Step 4: Simplify right side
    22,903.92x = 405,547,750.73
  5. Step 5: Solve for x
    x = 405,547,750.73/22,903.92
  6. Step 6: Final answer
    x = 17,706.48

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