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Finding the Fourth Proportional to 18,217.31, 27,197.64 and 15,585.82

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Solution

The fourth proportional to 18,217.31, 27,197.64 and 15,585.82 is: 23,268.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.31 : 27,197.64 = 15,585.82 : x
  2. Step 2: Convert to fraction form
    18,217.31/27,197.64 = 15,585.82/x
  3. Step 3: Cross multiply
    18,217.31x = 27,197.64 × 15,585.82
  4. Step 4: Simplify right side
    18,217.31x = 423,897,453.47
  5. Step 5: Solve for x
    x = 423,897,453.47/18,217.31
  6. Step 6: Final answer
    x = 23,268.94

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