Home / 20,375.37-30,555.76-11,022.30

Finding the Fourth Proportional to 20,375.37, 30,555.76 and 11,022.30

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Solution

The fourth proportional to 20,375.37, 30,555.76 and 11,022.30 is: 16,529.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.37 : 30,555.76 = 11,022.30 : x
  2. Step 2: Convert to fraction form
    20,375.37/30,555.76 = 11,022.30/x
  3. Step 3: Cross multiply
    20,375.37x = 30,555.76 × 11,022.30
  4. Step 4: Simplify right side
    20,375.37x = 336,794,753.45
  5. Step 5: Solve for x
    x = 336,794,753.45/20,375.37
  6. Step 6: Final answer
    x = 16,529.50

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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.