Home / 28,997.20-43,496.24-8,220.68

Finding the Fourth Proportional to 28,997.20, 43,496.24 and 8,220.68

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Solution

The fourth proportional to 28,997.20, 43,496.24 and 8,220.68 is: 12,331.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.20 : 43,496.24 = 8,220.68 : x
  2. Step 2: Convert to fraction form
    28,997.20/43,496.24 = 8,220.68/x
  3. Step 3: Cross multiply
    28,997.20x = 43,496.24 × 8,220.68
  4. Step 4: Simplify right side
    28,997.20x = 357,568,670.24
  5. Step 5: Solve for x
    x = 357,568,670.24/28,997.20
  6. Step 6: Final answer
    x = 12,331.14

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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.