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Finding the Fourth Proportional to 21,663.50, 29,895.64 and 11,727.50

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Solution

The fourth proportional to 21,663.50, 29,895.64 and 11,727.50 is: 16,183.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,663.50 : 29,895.64 = 11,727.50 : x
  2. Step 2: Convert to fraction form
    21,663.50/29,895.64 = 11,727.50/x
  3. Step 3: Cross multiply
    21,663.50x = 29,895.64 × 11,727.50
  4. Step 4: Simplify right side
    21,663.50x = 350,601,118.10
  5. Step 5: Solve for x
    x = 350,601,118.10/21,663.50
  6. Step 6: Final answer
    x = 16,183.96

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