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Finding the Fourth Proportional to 16.48, 24.60 and 14.55

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Solution

The fourth proportional to 16.48, 24.60 and 14.55 is: 21.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.48 : 24.60 = 14.55 : x
  2. Step 2: Convert to fraction form
    16.48/24.60 = 14.55/x
  3. Step 3: Cross multiply
    16.48x = 24.60 × 14.55
  4. Step 4: Simplify right side
    16.48x = 357.98
  5. Step 5: Solve for x
    x = 357.98/16.48
  6. Step 6: Final answer
    x = 21.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.