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Finding the Fourth Proportional to 17.33, 25.81 and 16.68

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Solution

The fourth proportional to 17.33, 25.81 and 16.68 is: 24.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.33 : 25.81 = 16.68 : x
  2. Step 2: Convert to fraction form
    17.33/25.81 = 16.68/x
  3. Step 3: Cross multiply
    17.33x = 25.81 × 16.68
  4. Step 4: Simplify right side
    17.33x = 430.51
  5. Step 5: Solve for x
    x = 430.51/17.33
  6. Step 6: Final answer
    x = 24.85

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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.