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Finding the Fourth Proportional to 27,311.27, 40,966.64 and 12,515.99

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Solution

The fourth proportional to 27,311.27, 40,966.64 and 12,515.99 is: 18,773.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.27 : 40,966.64 = 12,515.99 : x
  2. Step 2: Convert to fraction form
    27,311.27/40,966.64 = 12,515.99/x
  3. Step 3: Cross multiply
    27,311.27x = 40,966.64 × 12,515.99
  4. Step 4: Simplify right side
    27,311.27x = 512,737,993.99
  5. Step 5: Solve for x
    x = 512,737,993.99/27,311.27
  6. Step 6: Final answer
    x = 18,773.86

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