Home / 20,274.62-30,382.76-8,571.74

Finding the Fourth Proportional to 20,274.62, 30,382.76 and 8,571.74

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Solution

The fourth proportional to 20,274.62, 30,382.76 and 8,571.74 is: 12,845.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.62 : 30,382.76 = 8,571.74 : x
  2. Step 2: Convert to fraction form
    20,274.62/30,382.76 = 8,571.74/x
  3. Step 3: Cross multiply
    20,274.62x = 30,382.76 × 8,571.74
  4. Step 4: Simplify right side
    20,274.62x = 260,433,119.20
  5. Step 5: Solve for x
    x = 260,433,119.20/20,274.62
  6. Step 6: Final answer
    x = 12,845.28

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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.