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Finding the Fourth Proportional to 32.40, 48.60 and 17.96

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Solution

The fourth proportional to 32.40, 48.60 and 17.96 is: 26.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.40 : 48.60 = 17.96 : x
  2. Step 2: Convert to fraction form
    32.40/48.60 = 17.96/x
  3. Step 3: Cross multiply
    32.40x = 48.60 × 17.96
  4. Step 4: Simplify right side
    32.40x = 872.86
  5. Step 5: Solve for x
    x = 872.86/32.40
  6. Step 6: Final answer
    x = 26.94

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