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Finding the Fourth Proportional to 17.22, 25.86 and 15.96

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Solution

The fourth proportional to 17.22, 25.86 and 15.96 is: 23.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.22 : 25.86 = 15.96 : x
  2. Step 2: Convert to fraction form
    17.22/25.86 = 15.96/x
  3. Step 3: Cross multiply
    17.22x = 25.86 × 15.96
  4. Step 4: Simplify right side
    17.22x = 412.73
  5. Step 5: Solve for x
    x = 412.73/17.22
  6. Step 6: Final answer
    x = 23.97

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