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Finding the Fourth Proportional to 29,362.80, 40,520.31 and 15,934.02

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Solution

The fourth proportional to 29,362.80, 40,520.31 and 15,934.02 is: 21,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,362.80 : 40,520.31 = 15,934.02 : x
  2. Step 2: Convert to fraction form
    29,362.80/40,520.31 = 15,934.02/x
  3. Step 3: Cross multiply
    29,362.80x = 40,520.31 × 15,934.02
  4. Step 4: Simplify right side
    29,362.80x = 645,651,429.95
  5. Step 5: Solve for x
    x = 645,651,429.95/29,362.80
  6. Step 6: Final answer
    x = 21,988.76

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