Home / 36,120.96-54,189.54-12,747.60

Finding the Fourth Proportional to 36,120.96, 54,189.54 and 12,747.60

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Solution

The fourth proportional to 36,120.96, 54,189.54 and 12,747.60 is: 19,124.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,120.96 : 54,189.54 = 12,747.60 : x
  2. Step 2: Convert to fraction form
    36,120.96/54,189.54 = 12,747.60/x
  3. Step 3: Cross multiply
    36,120.96x = 54,189.54 × 12,747.60
  4. Step 4: Simplify right side
    36,120.96x = 690,786,580.10
  5. Step 5: Solve for x
    x = 690,786,580.10/36,120.96
  6. Step 6: Final answer
    x = 19,124.26

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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.