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Finding the Fourth Proportional to 33, 45.75 and 32.85

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Solution

The fourth proportional to 33, 45.75 and 32.85 is: 45.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    33 : 45.75 = 32.85 : x
  2. Step 2: Convert to fraction form
    33/45.75 = 32.85/x
  3. Step 3: Cross multiply
    33x = 45.75 × 32.85
  4. Step 4: Simplify right side
    33x = 1,502.89
  5. Step 5: Solve for x
    x = 1,502.89/33
  6. Step 6: Final answer
    x = 45.54

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1.5x scale

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.