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Finding the Fourth Proportional to 22,997.76, 31,728.72 and 13,564.32

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Solution

The fourth proportional to 22,997.76, 31,728.72 and 13,564.32 is: 18,713.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,997.76 : 31,728.72 = 13,564.32 : x
  2. Step 2: Convert to fraction form
    22,997.76/31,728.72 = 13,564.32/x
  3. Step 3: Cross multiply
    22,997.76x = 31,728.72 × 13,564.32
  4. Step 4: Simplify right side
    22,997.76x = 430,378,511.27
  5. Step 5: Solve for x
    x = 430,378,511.27/22,997.76
  6. Step 6: Final answer
    x = 18,713.93

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