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Finding the Fourth Proportional to 16.23, 24.22 and 15.66

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Solution

The fourth proportional to 16.23, 24.22 and 15.66 is: 23.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.23 : 24.22 = 15.66 : x
  2. Step 2: Convert to fraction form
    16.23/24.22 = 15.66/x
  3. Step 3: Cross multiply
    16.23x = 24.22 × 15.66
  4. Step 4: Simplify right side
    16.23x = 379.22
  5. Step 5: Solve for x
    x = 379.22/16.23
  6. Step 6: Final answer
    x = 23.36

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Similar ratio
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1.5x scale

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.