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Finding the Fourth Proportional to 29.56, 44.08 and 28.09

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Solution

The fourth proportional to 29.56, 44.08 and 28.09 is: 41.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.56 : 44.08 = 28.09 : x
  2. Step 2: Convert to fraction form
    29.56/44.08 = 28.09/x
  3. Step 3: Cross multiply
    29.56x = 44.08 × 28.09
  4. Step 4: Simplify right side
    29.56x = 1,238.21
  5. Step 5: Solve for x
    x = 1,238.21/29.56
  6. Step 6: Final answer
    x = 41.89

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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.