Home / 20,663.26-30,994.32-7,515.88

Finding the Fourth Proportional to 20,663.26, 30,994.32 and 7,515.88

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Solution

The fourth proportional to 20,663.26, 30,994.32 and 7,515.88 is: 11,273.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663.26 : 30,994.32 = 7,515.88 : x
  2. Step 2: Convert to fraction form
    20,663.26/30,994.32 = 7,515.88/x
  3. Step 3: Cross multiply
    20,663.26x = 30,994.32 × 7,515.88
  4. Step 4: Simplify right side
    20,663.26x = 232,949,589.80
  5. Step 5: Solve for x
    x = 232,949,589.80/20,663.26
  6. Step 6: Final answer
    x = 11,273.61

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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.