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Finding the Fourth Proportional to 21,601.72, 32,383.14 and 7,747.48

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Solution

The fourth proportional to 21,601.72, 32,383.14 and 7,747.48 is: 11,614.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.72 : 32,383.14 = 7,747.48 : x
  2. Step 2: Convert to fraction form
    21,601.72/32,383.14 = 7,747.48/x
  3. Step 3: Cross multiply
    21,601.72x = 32,383.14 × 7,747.48
  4. Step 4: Simplify right side
    21,601.72x = 250,887,729.49
  5. Step 5: Solve for x
    x = 250,887,729.49/21,601.72
  6. Step 6: Final answer
    x = 11,614.25

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