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Finding the Fourth Proportional to 18.34, 27.35 and 17.32

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Solution

The fourth proportional to 18.34, 27.35 and 17.32 is: 25.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.34 : 27.35 = 17.32 : x
  2. Step 2: Convert to fraction form
    18.34/27.35 = 17.32/x
  3. Step 3: Cross multiply
    18.34x = 27.35 × 17.32
  4. Step 4: Simplify right side
    18.34x = 473.70
  5. Step 5: Solve for x
    x = 473.70/18.34
  6. Step 6: Final answer
    x = 25.83

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.