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Finding the Fourth Proportional to 31,548.80, 47,258.40 and 15,975.20

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Solution

The fourth proportional to 31,548.80, 47,258.40 and 15,975.20 is: 23,929.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,548.80 : 47,258.40 = 15,975.20 : x
  2. Step 2: Convert to fraction form
    31,548.80/47,258.40 = 15,975.20/x
  3. Step 3: Cross multiply
    31,548.80x = 47,258.40 × 15,975.20
  4. Step 4: Simplify right side
    31,548.80x = 754,962,391.68
  5. Step 5: Solve for x
    x = 754,962,391.68/31,548.80
  6. Step 6: Final answer
    x = 23,929.99

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