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Finding the Fourth Proportional to 22.22, 33.34 and 20.24

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Solution

The fourth proportional to 22.22, 33.34 and 20.24 is: 30.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.22 : 33.34 = 20.24 : x
  2. Step 2: Convert to fraction form
    22.22/33.34 = 20.24/x
  3. Step 3: Cross multiply
    22.22x = 33.34 × 20.24
  4. Step 4: Simplify right side
    22.22x = 674.80
  5. Step 5: Solve for x
    x = 674.80/22.22
  6. Step 6: Final answer
    x = 30.37

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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.