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Finding the Fourth Proportional to 17.13, 25.59 and 14.09

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Solution

The fourth proportional to 17.13, 25.59 and 14.09 is: 21.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.13 : 25.59 = 14.09 : x
  2. Step 2: Convert to fraction form
    17.13/25.59 = 14.09/x
  3. Step 3: Cross multiply
    17.13x = 25.59 × 14.09
  4. Step 4: Simplify right side
    17.13x = 360.44
  5. Step 5: Solve for x
    x = 360.44/17.13
  6. Step 6: Final answer
    x = 21.04

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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.