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Finding the Fourth Proportional to 22,936.60, 34,404.90 and 13,720.60

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Solution

The fourth proportional to 22,936.60, 34,404.90 and 13,720.60 is: 20,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,936.60 : 34,404.90 = 13,720.60 : x
  2. Step 2: Convert to fraction form
    22,936.60/34,404.90 = 13,720.60/x
  3. Step 3: Cross multiply
    22,936.60x = 34,404.90 × 13,720.60
  4. Step 4: Simplify right side
    22,936.60x = 472,055,870.94
  5. Step 5: Solve for x
    x = 472,055,870.94/22,936.60
  6. Step 6: Final answer
    x = 20,580.90

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