Home / 20,219.42-30,329.13-6,179.49

Finding the Fourth Proportional to 20,219.42, 30,329.13 and 6,179.49

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Solution

The fourth proportional to 20,219.42, 30,329.13 and 6,179.49 is: 9,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.42 : 30,329.13 = 6,179.49 : x
  2. Step 2: Convert to fraction form
    20,219.42/30,329.13 = 6,179.49/x
  3. Step 3: Cross multiply
    20,219.42x = 30,329.13 × 6,179.49
  4. Step 4: Simplify right side
    20,219.42x = 187,418,578.72
  5. Step 5: Solve for x
    x = 187,418,578.72/20,219.42
  6. Step 6: Final answer
    x = 9,269.24

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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.