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Finding the Fourth Proportional to 36, 54.01 and 18.88

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Solution

The fourth proportional to 36, 54.01 and 18.88 is: 28.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36 : 54.01 = 18.88 : x
  2. Step 2: Convert to fraction form
    36/54.01 = 18.88/x
  3. Step 3: Cross multiply
    36x = 54.01 × 18.88
  4. Step 4: Simplify right side
    36x = 1,019.44
  5. Step 5: Solve for x
    x = 1,019.44/36
  6. Step 6: Final answer
    x = 28.32

Related Problems

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1.5x scale

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.