Home / 20,611.29-30,919.37-6,566.43

Finding the Fourth Proportional to 20,611.29, 30,919.37 and 6,566.43

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Solution

The fourth proportional to 20,611.29, 30,919.37 and 6,566.43 is: 9,850.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,611.29 : 30,919.37 = 6,566.43 : x
  2. Step 2: Convert to fraction form
    20,611.29/30,919.37 = 6,566.43/x
  3. Step 3: Cross multiply
    20,611.29x = 30,919.37 × 6,566.43
  4. Step 4: Simplify right side
    20,611.29x = 203,029,845.92
  5. Step 5: Solve for x
    x = 203,029,845.92/20,611.29
  6. Step 6: Final answer
    x = 9,850.42

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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.