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Finding the Fourth Proportional to 17,319.09, 25,978.65 and 4,171.46

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Solution

The fourth proportional to 17,319.09, 25,978.65 and 4,171.46 is: 6,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,319.09 : 25,978.65 = 4,171.46 : x
  2. Step 2: Convert to fraction form
    17,319.09/25,978.65 = 4,171.46/x
  3. Step 3: Cross multiply
    17,319.09x = 25,978.65 × 4,171.46
  4. Step 4: Simplify right side
    17,319.09x = 108,368,964.28
  5. Step 5: Solve for x
    x = 108,368,964.28/17,319.09
  6. Step 6: Final answer
    x = 6,257.20

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