Home / 36,166.20-54,249.30-12,789.60

Finding the Fourth Proportional to 36,166.20, 54,249.30 and 12,789.60

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Solution

The fourth proportional to 36,166.20, 54,249.30 and 12,789.60 is: 19,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,166.20 : 54,249.30 = 12,789.60 : x
  2. Step 2: Convert to fraction form
    36,166.20/54,249.30 = 12,789.60/x
  3. Step 3: Cross multiply
    36,166.20x = 54,249.30 × 12,789.60
  4. Step 4: Simplify right side
    36,166.20x = 693,826,847.28
  5. Step 5: Solve for x
    x = 693,826,847.28/36,166.20
  6. Step 6: Final answer
    x = 19,184.40

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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.