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Finding the Fourth Proportional to 31,458.85, 47,193.13 and 11,470.03

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Solution

The fourth proportional to 31,458.85, 47,193.13 and 11,470.03 is: 17,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,458.85 : 47,193.13 = 11,470.03 : x
  2. Step 2: Convert to fraction form
    31,458.85/47,193.13 = 11,470.03/x
  3. Step 3: Cross multiply
    31,458.85x = 47,193.13 × 11,470.03
  4. Step 4: Simplify right side
    31,458.85x = 541,306,616.89
  5. Step 5: Solve for x
    x = 541,306,616.89/31,458.85
  6. Step 6: Final answer
    x = 17,206.82

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