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Finding the Fourth Proportional to 31,963.68, 47,945.52 and 20,252.25

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Solution

The fourth proportional to 31,963.68, 47,945.52 and 20,252.25 is: 30,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,963.68 : 47,945.52 = 20,252.25 : x
  2. Step 2: Convert to fraction form
    31,963.68/47,945.52 = 20,252.25/x
  3. Step 3: Cross multiply
    31,963.68x = 47,945.52 × 20,252.25
  4. Step 4: Simplify right side
    31,963.68x = 971,004,657.42
  5. Step 5: Solve for x
    x = 971,004,657.42/31,963.68
  6. Step 6: Final answer
    x = 30,378.38

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