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Finding the Fourth Proportional to 36.35, 54.53 and 18.30

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Solution

The fourth proportional to 36.35, 54.53 and 18.30 is: 27.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.35 : 54.53 = 18.30 : x
  2. Step 2: Convert to fraction form
    36.35/54.53 = 18.30/x
  3. Step 3: Cross multiply
    36.35x = 54.53 × 18.30
  4. Step 4: Simplify right side
    36.35x = 998.08
  5. Step 5: Solve for x
    x = 998.08/36.35
  6. Step 6: Final answer
    x = 27.46

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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.