Home / 20,161.98-30,243.02-6,122.12

Finding the Fourth Proportional to 20,161.98, 30,243.02 and 6,122.12

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Solution

The fourth proportional to 20,161.98, 30,243.02 and 6,122.12 is: 9,183.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.98 : 30,243.02 = 6,122.12 : x
  2. Step 2: Convert to fraction form
    20,161.98/30,243.02 = 6,122.12/x
  3. Step 3: Cross multiply
    20,161.98x = 30,243.02 × 6,122.12
  4. Step 4: Simplify right side
    20,161.98x = 185,151,215.78
  5. Step 5: Solve for x
    x = 185,151,215.78/20,161.98
  6. Step 6: Final answer
    x = 9,183.19

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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.