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Finding the Fourth Proportional to 35.22, 48.42 and 33.74

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Solution

The fourth proportional to 35.22, 48.42 and 33.74 is: 46.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.22 : 48.42 = 33.74 : x
  2. Step 2: Convert to fraction form
    35.22/48.42 = 33.74/x
  3. Step 3: Cross multiply
    35.22x = 48.42 × 33.74
  4. Step 4: Simplify right side
    35.22x = 1,633.69
  5. Step 5: Solve for x
    x = 1,633.69/35.22
  6. Step 6: Final answer
    x = 46.39

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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.