Home / 20,069.46-30,104.19-6,920.80

Finding the Fourth Proportional to 20,069.46, 30,104.19 and 6,920.80

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Solution

The fourth proportional to 20,069.46, 30,104.19 and 6,920.80 is: 10,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.46 : 30,104.19 = 6,920.80 : x
  2. Step 2: Convert to fraction form
    20,069.46/30,104.19 = 6,920.80/x
  3. Step 3: Cross multiply
    20,069.46x = 30,104.19 × 6,920.80
  4. Step 4: Simplify right side
    20,069.46x = 208,345,078.15
  5. Step 5: Solve for x
    x = 208,345,078.15/20,069.46
  6. Step 6: Final answer
    x = 10,381.20

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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.