Home / 20,493.24-30,720.96-8,021.76

Finding the Fourth Proportional to 20,493.24, 30,720.96 and 8,021.76

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Solution

The fourth proportional to 20,493.24, 30,720.96 and 8,021.76 is: 12,025.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493.24 : 30,720.96 = 8,021.76 : x
  2. Step 2: Convert to fraction form
    20,493.24/30,720.96 = 8,021.76/x
  3. Step 3: Cross multiply
    20,493.24x = 30,720.96 × 8,021.76
  4. Step 4: Simplify right side
    20,493.24x = 246,436,168.09
  5. Step 5: Solve for x
    x = 246,436,168.09/20,493.24
  6. Step 6: Final answer
    x = 12,025.24

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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.