Home / 36,138.83-54,194.79-12,439.76

Finding the Fourth Proportional to 36,138.83, 54,194.79 and 12,439.76

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Solution

The fourth proportional to 36,138.83, 54,194.79 and 12,439.76 is: 18,655.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,138.83 : 54,194.79 = 12,439.76 : x
  2. Step 2: Convert to fraction form
    36,138.83/54,194.79 = 12,439.76/x
  3. Step 3: Cross multiply
    36,138.83x = 54,194.79 × 12,439.76
  4. Step 4: Simplify right side
    36,138.83x = 674,170,180.85
  5. Step 5: Solve for x
    x = 674,170,180.85/36,138.83
  6. Step 6: Final answer
    x = 18,655.01

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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.