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Finding the Fourth Proportional to 36,981.28, 51,034.08 and 20,214.40

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Solution

The fourth proportional to 36,981.28, 51,034.08 and 20,214.40 is: 27,895.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,981.28 : 51,034.08 = 20,214.40 : x
  2. Step 2: Convert to fraction form
    36,981.28/51,034.08 = 20,214.40/x
  3. Step 3: Cross multiply
    36,981.28x = 51,034.08 × 20,214.40
  4. Step 4: Simplify right side
    36,981.28x = 1,031,623,306.75
  5. Step 5: Solve for x
    x = 1,031,623,306.75/36,981.28
  6. Step 6: Final answer
    x = 27,895.82

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