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Finding the Fourth Proportional to 31,433.52, 47,163.08 and 20,201.44

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Solution

The fourth proportional to 31,433.52, 47,163.08 and 20,201.44 is: 30,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,433.52 : 47,163.08 = 20,201.44 : x
  2. Step 2: Convert to fraction form
    31,433.52/47,163.08 = 20,201.44/x
  3. Step 3: Cross multiply
    31,433.52x = 47,163.08 × 20,201.44
  4. Step 4: Simplify right side
    31,433.52x = 952,762,130.84
  5. Step 5: Solve for x
    x = 952,762,130.84/31,433.52
  6. Step 6: Final answer
    x = 30,310.39

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