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Finding the Fourth Proportional to 25,731.20, 38,596.80 and 10,940.60

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Solution

The fourth proportional to 25,731.20, 38,596.80 and 10,940.60 is: 16,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,731.20 : 38,596.80 = 10,940.60 : x
  2. Step 2: Convert to fraction form
    25,731.20/38,596.80 = 10,940.60/x
  3. Step 3: Cross multiply
    25,731.20x = 38,596.80 × 10,940.60
  4. Step 4: Simplify right side
    25,731.20x = 422,272,150.08
  5. Step 5: Solve for x
    x = 422,272,150.08/25,731.20
  6. Step 6: Final answer
    x = 16,410.90

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