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Finding the Fourth Proportional to 28.04, 42.06 and 17.96

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Solution

The fourth proportional to 28.04, 42.06 and 17.96 is: 26.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.04 : 42.06 = 17.96 : x
  2. Step 2: Convert to fraction form
    28.04/42.06 = 17.96/x
  3. Step 3: Cross multiply
    28.04x = 42.06 × 17.96
  4. Step 4: Simplify right side
    28.04x = 755.40
  5. Step 5: Solve for x
    x = 755.40/28.04
  6. Step 6: Final answer
    x = 26.94

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