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Finding the Fourth Proportional to 29.24, 43.96 and 28.44

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Solution

The fourth proportional to 29.24, 43.96 and 28.44 is: 42.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.24 : 43.96 = 28.44 : x
  2. Step 2: Convert to fraction form
    29.24/43.96 = 28.44/x
  3. Step 3: Cross multiply
    29.24x = 43.96 × 28.44
  4. Step 4: Simplify right side
    29.24x = 1,250.22
  5. Step 5: Solve for x
    x = 1,250.22/29.24
  6. Step 6: Final answer
    x = 42.76

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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.