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Finding the Fourth Proportional to 38.19, 52.43 and 34.95

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Solution

The fourth proportional to 38.19, 52.43 and 34.95 is: 47.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.19 : 52.43 = 34.95 : x
  2. Step 2: Convert to fraction form
    38.19/52.43 = 34.95/x
  3. Step 3: Cross multiply
    38.19x = 52.43 × 34.95
  4. Step 4: Simplify right side
    38.19x = 1,832.25
  5. Step 5: Solve for x
    x = 1,832.25/38.19
  6. Step 6: Final answer
    x = 47.98

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.