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Finding the Fourth Proportional to 32.76, 45.24 and 30.33

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Solution

The fourth proportional to 32.76, 45.24 and 30.33 is: 41.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.76 : 45.24 = 30.33 : x
  2. Step 2: Convert to fraction form
    32.76/45.24 = 30.33/x
  3. Step 3: Cross multiply
    32.76x = 45.24 × 30.33
  4. Step 4: Simplify right side
    32.76x = 1,372.13
  5. Step 5: Solve for x
    x = 1,372.13/32.76
  6. Step 6: Final answer
    x = 41.88

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Find fourth proportional to 16.38, 22.62 and 15.17
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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.