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Finding the Fourth Proportional to 17.24, 23.60 and 16.55

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Solution

The fourth proportional to 17.24, 23.60 and 16.55 is: 22.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.24 : 23.60 = 16.55 : x
  2. Step 2: Convert to fraction form
    17.24/23.60 = 16.55/x
  3. Step 3: Cross multiply
    17.24x = 23.60 × 16.55
  4. Step 4: Simplify right side
    17.24x = 390.50
  5. Step 5: Solve for x
    x = 390.50/17.24
  6. Step 6: Final answer
    x = 22.66

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.