Home / 20,191.06-30,290.05-6,862.65

Finding the Fourth Proportional to 20,191.06, 30,290.05 and 6,862.65

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Solution

The fourth proportional to 20,191.06, 30,290.05 and 6,862.65 is: 10,295.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.06 : 30,290.05 = 6,862.65 : x
  2. Step 2: Convert to fraction form
    20,191.06/30,290.05 = 6,862.65/x
  3. Step 3: Cross multiply
    20,191.06x = 30,290.05 × 6,862.65
  4. Step 4: Simplify right side
    20,191.06x = 207,869,860.18
  5. Step 5: Solve for x
    x = 207,869,860.18/20,191.06
  6. Step 6: Final answer
    x = 10,295.14

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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.