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Finding the Fourth Proportional to 20,112, 30,148 and 9,563.36

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Solution

The fourth proportional to 20,112, 30,148 and 9,563.36 is: 14,335.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112 : 30,148 = 9,563.36 : x
  2. Step 2: Convert to fraction form
    20,112/30,148 = 9,563.36/x
  3. Step 3: Cross multiply
    20,112x = 30,148 × 9,563.36
  4. Step 4: Simplify right side
    20,112x = 288,316,177.28
  5. Step 5: Solve for x
    x = 288,316,177.28/20,112
  6. Step 6: Final answer
    x = 14,335.53

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