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Finding the Fourth Proportional to 34.92, 47.90 and 32.85

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Solution

The fourth proportional to 34.92, 47.90 and 32.85 is: 45.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.92 : 47.90 = 32.85 : x
  2. Step 2: Convert to fraction form
    34.92/47.90 = 32.85/x
  3. Step 3: Cross multiply
    34.92x = 47.90 × 32.85
  4. Step 4: Simplify right side
    34.92x = 1,573.60
  5. Step 5: Solve for x
    x = 1,573.60/34.92
  6. Step 6: Final answer
    x = 45.06

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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.