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Finding the Fourth Proportional to 33.14, 49.64 and 25.90

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Solution

The fourth proportional to 33.14, 49.64 and 25.90 is: 38.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.14 : 49.64 = 25.90 : x
  2. Step 2: Convert to fraction form
    33.14/49.64 = 25.90/x
  3. Step 3: Cross multiply
    33.14x = 49.64 × 25.90
  4. Step 4: Simplify right side
    33.14x = 1,285.68
  5. Step 5: Solve for x
    x = 1,285.68/33.14
  6. Step 6: Final answer
    x = 38.80

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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.