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Finding the Fourth Proportional to 38,963.20, 58,423.20 and 16,772.80

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Solution

The fourth proportional to 38,963.20, 58,423.20 and 16,772.80 is: 25,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,963.20 : 58,423.20 = 16,772.80 : x
  2. Step 2: Convert to fraction form
    38,963.20/58,423.20 = 16,772.80/x
  3. Step 3: Cross multiply
    38,963.20x = 58,423.20 × 16,772.80
  4. Step 4: Simplify right side
    38,963.20x = 979,920,648.96
  5. Step 5: Solve for x
    x = 979,920,648.96/38,963.20
  6. Step 6: Final answer
    x = 25,149.90

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