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Finding the Fourth Proportional to 36.32, 54.56 and 29.28

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Solution

The fourth proportional to 36.32, 54.56 and 29.28 is: 43.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.32 : 54.56 = 29.28 : x
  2. Step 2: Convert to fraction form
    36.32/54.56 = 29.28/x
  3. Step 3: Cross multiply
    36.32x = 54.56 × 29.28
  4. Step 4: Simplify right side
    36.32x = 1,597.52
  5. Step 5: Solve for x
    x = 1,597.52/36.32
  6. Step 6: Final answer
    x = 43.98

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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.