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Finding the Fourth Proportional to 38.39, 57.53 and 14.33

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Solution

The fourth proportional to 38.39, 57.53 and 14.33 is: 21.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.39 : 57.53 = 14.33 : x
  2. Step 2: Convert to fraction form
    38.39/57.53 = 14.33/x
  3. Step 3: Cross multiply
    38.39x = 57.53 × 14.33
  4. Step 4: Simplify right side
    38.39x = 824.05
  5. Step 5: Solve for x
    x = 824.05/38.39
  6. Step 6: Final answer
    x = 21.47

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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.