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Finding the Fourth Proportional to 38.53, 53.22 and 33.94

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Solution

The fourth proportional to 38.53, 53.22 and 33.94 is: 46.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.53 : 53.22 = 33.94 : x
  2. Step 2: Convert to fraction form
    38.53/53.22 = 33.94/x
  3. Step 3: Cross multiply
    38.53x = 53.22 × 33.94
  4. Step 4: Simplify right side
    38.53x = 1,806.29
  5. Step 5: Solve for x
    x = 1,806.29/38.53
  6. Step 6: Final answer
    x = 46.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.