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Finding the Fourth Proportional to 36.22, 50.00 and 28.42

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Solution

The fourth proportional to 36.22, 50.00 and 28.42 is: 39.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.22 : 50.00 = 28.42 : x
  2. Step 2: Convert to fraction form
    36.22/50.00 = 28.42/x
  3. Step 3: Cross multiply
    36.22x = 50.00 × 28.42
  4. Step 4: Simplify right side
    36.22x = 1,421.12
  5. Step 5: Solve for x
    x = 1,421.12/36.22
  6. Step 6: Final answer
    x = 39.23

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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.