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Finding the Fourth Proportional to 36.36, 54.44 and 26.20

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Solution

The fourth proportional to 36.36, 54.44 and 26.20 is: 39.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.36 : 54.44 = 26.20 : x
  2. Step 2: Convert to fraction form
    36.36/54.44 = 26.20/x
  3. Step 3: Cross multiply
    36.36x = 54.44 × 26.20
  4. Step 4: Simplify right side
    36.36x = 1,426.33
  5. Step 5: Solve for x
    x = 1,426.33/36.36
  6. Step 6: Final answer
    x = 39.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.