Home / 36,144.78-54,197.41-20,139.18

Finding the Fourth Proportional to 36,144.78, 54,197.41 and 20,139.18

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Solution

The fourth proportional to 36,144.78, 54,197.41 and 20,139.18 is: 30,197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,144.78 : 54,197.41 = 20,139.18 : x
  2. Step 2: Convert to fraction form
    36,144.78/54,197.41 = 20,139.18/x
  3. Step 3: Cross multiply
    36,144.78x = 54,197.41 × 20,139.18
  4. Step 4: Simplify right side
    36,144.78x = 1,091,491,395.52
  5. Step 5: Solve for x
    x = 1,091,491,395.52/36,144.78
  6. Step 6: Final answer
    x = 30,197.76

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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.