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Finding the Fourth Proportional to 30,941.52, 42,694.92 and 18,371.28

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Solution

The fourth proportional to 30,941.52, 42,694.92 and 18,371.28 is: 25,349.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,941.52 : 42,694.92 = 18,371.28 : x
  2. Step 2: Convert to fraction form
    30,941.52/42,694.92 = 18,371.28/x
  3. Step 3: Cross multiply
    30,941.52x = 42,694.92 × 18,371.28
  4. Step 4: Simplify right side
    30,941.52x = 784,360,329.90
  5. Step 5: Solve for x
    x = 784,360,329.90/30,941.52
  6. Step 6: Final answer
    x = 25,349.77

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