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Finding the Fourth Proportional to 17.01, 25.35 and 16.68

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Solution

The fourth proportional to 17.01, 25.35 and 16.68 is: 24.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.01 : 25.35 = 16.68 : x
  2. Step 2: Convert to fraction form
    17.01/25.35 = 16.68/x
  3. Step 3: Cross multiply
    17.01x = 25.35 × 16.68
  4. Step 4: Simplify right side
    17.01x = 422.84
  5. Step 5: Solve for x
    x = 422.84/17.01
  6. Step 6: Final answer
    x = 24.86

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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.