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Finding the Fourth Proportional to 20,363.74, 30,524.29 and 8,524.30

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Solution

The fourth proportional to 20,363.74, 30,524.29 and 8,524.30 is: 12,777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.74 : 30,524.29 = 8,524.30 : x
  2. Step 2: Convert to fraction form
    20,363.74/30,524.29 = 8,524.30/x
  3. Step 3: Cross multiply
    20,363.74x = 30,524.29 × 8,524.30
  4. Step 4: Simplify right side
    20,363.74x = 260,198,205.25
  5. Step 5: Solve for x
    x = 260,198,205.25/20,363.74
  6. Step 6: Final answer
    x = 12,777.53

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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.