Home / 20,451.60-30,664.44-10,578.96

Finding the Fourth Proportional to 20,451.60, 30,664.44 and 10,578.96

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Solution

The fourth proportional to 20,451.60, 30,664.44 and 10,578.96 is: 15,861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451.60 : 30,664.44 = 10,578.96 : x
  2. Step 2: Convert to fraction form
    20,451.60/30,664.44 = 10,578.96/x
  3. Step 3: Cross multiply
    20,451.60x = 30,664.44 × 10,578.96
  4. Step 4: Simplify right side
    20,451.60x = 324,397,884.18
  5. Step 5: Solve for x
    x = 324,397,884.18/20,451.60
  6. Step 6: Final answer
    x = 15,861.74

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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.