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Finding the Fourth Proportional to 38.28, 53.07 and 36.23

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Solution

The fourth proportional to 38.28, 53.07 and 36.23 is: 50.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.28 : 53.07 = 36.23 : x
  2. Step 2: Convert to fraction form
    38.28/53.07 = 36.23/x
  3. Step 3: Cross multiply
    38.28x = 53.07 × 36.23
  4. Step 4: Simplify right side
    38.28x = 1,922.43
  5. Step 5: Solve for x
    x = 1,922.43/38.28
  6. Step 6: Final answer
    x = 50.23

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.