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Finding the Fourth Proportional to 18.34, 25.17 and 17.62

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Solution

The fourth proportional to 18.34, 25.17 and 17.62 is: 24.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.34 : 25.17 = 17.62 : x
  2. Step 2: Convert to fraction form
    18.34/25.17 = 17.62/x
  3. Step 3: Cross multiply
    18.34x = 25.17 × 17.62
  4. Step 4: Simplify right side
    18.34x = 443.41
  5. Step 5: Solve for x
    x = 443.41/18.34
  6. Step 6: Final answer
    x = 24.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.