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Finding the Fourth Proportional to 29.60, 44.43 and 28.69

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Solution

The fourth proportional to 29.60, 44.43 and 28.69 is: 43.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.60 : 44.43 = 28.69 : x
  2. Step 2: Convert to fraction form
    29.60/44.43 = 28.69/x
  3. Step 3: Cross multiply
    29.60x = 44.43 × 28.69
  4. Step 4: Simplify right side
    29.60x = 1,274.70
  5. Step 5: Solve for x
    x = 1,274.70/29.60
  6. Step 6: Final answer
    x = 43.06

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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.