Home / 36,138.88-54,188.34-11,172.04

Finding the Fourth Proportional to 36,138.88, 54,188.34 and 11,172.04

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Solution

The fourth proportional to 36,138.88, 54,188.34 and 11,172.04 is: 16,751.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,138.88 : 54,188.34 = 11,172.04 : x
  2. Step 2: Convert to fraction form
    36,138.88/54,188.34 = 11,172.04/x
  3. Step 3: Cross multiply
    36,138.88x = 54,188.34 × 11,172.04
  4. Step 4: Simplify right side
    36,138.88x = 605,394,302.01
  5. Step 5: Solve for x
    x = 605,394,302.01/36,138.88
  6. Step 6: Final answer
    x = 16,751.88

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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.