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Finding the Fourth Proportional to 24.82, 37.18 and 19.72

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Solution

The fourth proportional to 24.82, 37.18 and 19.72 is: 29.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.82 : 37.18 = 19.72 : x
  2. Step 2: Convert to fraction form
    24.82/37.18 = 19.72/x
  3. Step 3: Cross multiply
    24.82x = 37.18 × 19.72
  4. Step 4: Simplify right side
    24.82x = 733.19
  5. Step 5: Solve for x
    x = 733.19/24.82
  6. Step 6: Final answer
    x = 29.54

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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.