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Finding the Fourth Proportional to 16.22, 24.36 and 10.25

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Solution

The fourth proportional to 16.22, 24.36 and 10.25 is: 15.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.22 : 24.36 = 10.25 : x
  2. Step 2: Convert to fraction form
    16.22/24.36 = 10.25/x
  3. Step 3: Cross multiply
    16.22x = 24.36 × 10.25
  4. Step 4: Simplify right side
    16.22x = 249.69
  5. Step 5: Solve for x
    x = 249.69/16.22
  6. Step 6: Final answer
    x = 15.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.