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Finding the Fourth Proportional to 20.14, 30.14 and 15.04

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Solution

The fourth proportional to 20.14, 30.14 and 15.04 is: 22.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20.14 : 30.14 = 15.04 : x
  2. Step 2: Convert to fraction form
    20.14/30.14 = 15.04/x
  3. Step 3: Cross multiply
    20.14x = 30.14 × 15.04
  4. Step 4: Simplify right side
    20.14x = 453.15
  5. Step 5: Solve for x
    x = 453.15/20.14
  6. Step 6: Final answer
    x = 22.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.