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Finding the Fourth Proportional to 32.23, 44.27 and 28.12

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Solution

The fourth proportional to 32.23, 44.27 and 28.12 is: 38.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.23 : 44.27 = 28.12 : x
  2. Step 2: Convert to fraction form
    32.23/44.27 = 28.12/x
  3. Step 3: Cross multiply
    32.23x = 44.27 × 28.12
  4. Step 4: Simplify right side
    32.23x = 1,244.87
  5. Step 5: Solve for x
    x = 1,244.87/32.23
  6. Step 6: Final answer
    x = 38.62

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.