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Finding the Fourth Proportional to 36.09, 54.11 and 16.82

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Solution

The fourth proportional to 36.09, 54.11 and 16.82 is: 25.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.09 : 54.11 = 16.82 : x
  2. Step 2: Convert to fraction form
    36.09/54.11 = 16.82/x
  3. Step 3: Cross multiply
    36.09x = 54.11 × 16.82
  4. Step 4: Simplify right side
    36.09x = 910.08
  5. Step 5: Solve for x
    x = 910.08/36.09
  6. Step 6: Final answer
    x = 25.22

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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.