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Finding the Fourth Proportional to 27.22, 40.54 and 25.49

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Solution

The fourth proportional to 27.22, 40.54 and 25.49 is: 37.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.22 : 40.54 = 25.49 : x
  2. Step 2: Convert to fraction form
    27.22/40.54 = 25.49/x
  3. Step 3: Cross multiply
    27.22x = 40.54 × 25.49
  4. Step 4: Simplify right side
    27.22x = 1,033.24
  5. Step 5: Solve for x
    x = 1,033.24/27.22
  6. Step 6: Final answer
    x = 37.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.