Home / 20,122.19-30,183.29-6,974.57

Finding the Fourth Proportional to 20,122.19, 30,183.29 and 6,974.57

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Solution

The fourth proportional to 20,122.19, 30,183.29 and 6,974.57 is: 10,461.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.19 : 30,183.29 = 6,974.57 : x
  2. Step 2: Convert to fraction form
    20,122.19/30,183.29 = 6,974.57/x
  3. Step 3: Cross multiply
    20,122.19x = 30,183.29 × 6,974.57
  4. Step 4: Simplify right side
    20,122.19x = 210,515,468.94
  5. Step 5: Solve for x
    x = 210,515,468.94/20,122.19
  6. Step 6: Final answer
    x = 10,461.86

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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.