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Finding the Fourth Proportional to 31.98, 44 and 27.83

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Solution

The fourth proportional to 31.98, 44 and 27.83 is: 38.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.98 : 44 = 27.83 : x
  2. Step 2: Convert to fraction form
    31.98/44 = 27.83/x
  3. Step 3: Cross multiply
    31.98x = 44 × 27.83
  4. Step 4: Simplify right side
    31.98x = 1,224.52
  5. Step 5: Solve for x
    x = 1,224.52/31.98
  6. Step 6: Final answer
    x = 38.29

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Similar ratio
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1.5x scale

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.