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Finding the Fourth Proportional to 31,815.60, 47,725.29 and 8,441.97

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Solution

The fourth proportional to 31,815.60, 47,725.29 and 8,441.97 is: 12,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,815.60 : 47,725.29 = 8,441.97 : x
  2. Step 2: Convert to fraction form
    31,815.60/47,725.29 = 8,441.97/x
  3. Step 3: Cross multiply
    31,815.60x = 47,725.29 × 8,441.97
  4. Step 4: Simplify right side
    31,815.60x = 402,895,466.42
  5. Step 5: Solve for x
    x = 402,895,466.42/31,815.60
  6. Step 6: Final answer
    x = 12,663.46

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