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Finding the Fourth Proportional to 22.66, 34.04 and 18.16

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Solution

The fourth proportional to 22.66, 34.04 and 18.16 is: 27.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.66 : 34.04 = 18.16 : x
  2. Step 2: Convert to fraction form
    22.66/34.04 = 18.16/x
  3. Step 3: Cross multiply
    22.66x = 34.04 × 18.16
  4. Step 4: Simplify right side
    22.66x = 618.17
  5. Step 5: Solve for x
    x = 618.17/22.66
  6. Step 6: Final answer
    x = 27.28

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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.