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Finding the Fourth Proportional to 17.30, 23.88 and 16.13

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Solution

The fourth proportional to 17.30, 23.88 and 16.13 is: 22.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.30 : 23.88 = 16.13 : x
  2. Step 2: Convert to fraction form
    17.30/23.88 = 16.13/x
  3. Step 3: Cross multiply
    17.30x = 23.88 × 16.13
  4. Step 4: Simplify right side
    17.30x = 385.30
  5. Step 5: Solve for x
    x = 385.30/17.30
  6. Step 6: Final answer
    x = 22.27

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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.