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Finding the Fourth Proportional to 33.52, 46.26 and 20.58

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Solution

The fourth proportional to 33.52, 46.26 and 20.58 is: 28.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.52 : 46.26 = 20.58 : x
  2. Step 2: Convert to fraction form
    33.52/46.26 = 20.58/x
  3. Step 3: Cross multiply
    33.52x = 46.26 × 20.58
  4. Step 4: Simplify right side
    33.52x = 952.03
  5. Step 5: Solve for x
    x = 952.03/33.52
  6. Step 6: Final answer
    x = 28.40

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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.