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Finding the Fourth Proportional to 22.56, 33.84 and 7.35

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Solution

The fourth proportional to 22.56, 33.84 and 7.35 is: 11.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.56 : 33.84 = 7.35 : x
  2. Step 2: Convert to fraction form
    22.56/33.84 = 7.35/x
  3. Step 3: Cross multiply
    22.56x = 33.84 × 7.35
  4. Step 4: Simplify right side
    22.56x = 248.72
  5. Step 5: Solve for x
    x = 248.72/22.56
  6. Step 6: Final answer
    x = 11.03

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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.