Home / 20,273.62-30,381.26-8,570.74

Finding the Fourth Proportional to 20,273.62, 30,381.26 and 8,570.74

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Solution

The fourth proportional to 20,273.62, 30,381.26 and 8,570.74 is: 12,843.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.62 : 30,381.26 = 8,570.74 : x
  2. Step 2: Convert to fraction form
    20,273.62/30,381.26 = 8,570.74/x
  3. Step 3: Cross multiply
    20,273.62x = 30,381.26 × 8,570.74
  4. Step 4: Simplify right side
    20,273.62x = 260,389,880.33
  5. Step 5: Solve for x
    x = 260,389,880.33/20,273.62
  6. Step 6: Final answer
    x = 12,843.78

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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.