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Finding the Fourth Proportional to 24.89, 37.39 and 19.88

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Solution

The fourth proportional to 24.89, 37.39 and 19.88 is: 29.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.89 : 37.39 = 19.88 : x
  2. Step 2: Convert to fraction form
    24.89/37.39 = 19.88/x
  3. Step 3: Cross multiply
    24.89x = 37.39 × 19.88
  4. Step 4: Simplify right side
    24.89x = 743.31
  5. Step 5: Solve for x
    x = 743.31/24.89
  6. Step 6: Final answer
    x = 29.86

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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.