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Finding the Fourth Proportional to 22.18, 33.36 and 22

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Solution

The fourth proportional to 22.18, 33.36 and 22 is: 33.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.18 : 33.36 = 22 : x
  2. Step 2: Convert to fraction form
    22.18/33.36 = 22/x
  3. Step 3: Cross multiply
    22.18x = 33.36 × 22
  4. Step 4: Simplify right side
    22.18x = 733.92
  5. Step 5: Solve for x
    x = 733.92/22.18
  6. Step 6: Final answer
    x = 33.09

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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.