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Finding the Fourth Proportional to 29.32, 44.21 and 28.91

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Solution

The fourth proportional to 29.32, 44.21 and 28.91 is: 43.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.32 : 44.21 = 28.91 : x
  2. Step 2: Convert to fraction form
    29.32/44.21 = 28.91/x
  3. Step 3: Cross multiply
    29.32x = 44.21 × 28.91
  4. Step 4: Simplify right side
    29.32x = 1,278.11
  5. Step 5: Solve for x
    x = 1,278.11/29.32
  6. Step 6: Final answer
    x = 43.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.