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Finding the Fourth Proportional to 38,438.75, 57,665.09 and 17,388.71

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Solution

The fourth proportional to 38,438.75, 57,665.09 and 17,388.71 is: 26,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,438.75 : 57,665.09 = 17,388.71 : x
  2. Step 2: Convert to fraction form
    38,438.75/57,665.09 = 17,388.71/x
  3. Step 3: Cross multiply
    38,438.75x = 57,665.09 × 17,388.71
  4. Step 4: Simplify right side
    38,438.75x = 1,002,721,238.81
  5. Step 5: Solve for x
    x = 1,002,721,238.81/38,438.75
  6. Step 6: Final answer
    x = 26,086.21

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