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Finding the Fourth Proportional to 33.32, 45.94 and 28.14

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Solution

The fourth proportional to 33.32, 45.94 and 28.14 is: 38.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.32 : 45.94 = 28.14 : x
  2. Step 2: Convert to fraction form
    33.32/45.94 = 28.14/x
  3. Step 3: Cross multiply
    33.32x = 45.94 × 28.14
  4. Step 4: Simplify right side
    33.32x = 1,292.75
  5. Step 5: Solve for x
    x = 1,292.75/33.32
  6. Step 6: Final answer
    x = 38.80

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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.