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Finding the Fourth Proportional to 38.41, 57.82 and 29.89

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Solution

The fourth proportional to 38.41, 57.82 and 29.89 is: 44.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.41 : 57.82 = 29.89 : x
  2. Step 2: Convert to fraction form
    38.41/57.82 = 29.89/x
  3. Step 3: Cross multiply
    38.41x = 57.82 × 29.89
  4. Step 4: Simplify right side
    38.41x = 1,728.24
  5. Step 5: Solve for x
    x = 1,728.24/38.41
  6. Step 6: Final answer
    x = 44.99

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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.