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Finding the Fourth Proportional to 32.18, 44.61 and 30.35

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Solution

The fourth proportional to 32.18, 44.61 and 30.35 is: 42.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.18 : 44.61 = 30.35 : x
  2. Step 2: Convert to fraction form
    32.18/44.61 = 30.35/x
  3. Step 3: Cross multiply
    32.18x = 44.61 × 30.35
  4. Step 4: Simplify right side
    32.18x = 1,353.69
  5. Step 5: Solve for x
    x = 1,353.69/32.18
  6. Step 6: Final answer
    x = 42.07

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.