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Finding the Fourth Proportional to 16.30, 22.42 and 14.33

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Solution

The fourth proportional to 16.30, 22.42 and 14.33 is: 19.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.30 : 22.42 = 14.33 : x
  2. Step 2: Convert to fraction form
    16.30/22.42 = 14.33/x
  3. Step 3: Cross multiply
    16.30x = 22.42 × 14.33
  4. Step 4: Simplify right side
    16.30x = 321.35
  5. Step 5: Solve for x
    x = 321.35/16.30
  6. Step 6: Final answer
    x = 19.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.