Home / 20,072.87-30,115.38-6,744.32

Finding the Fourth Proportional to 20,072.87, 30,115.38 and 6,744.32

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Solution

The fourth proportional to 20,072.87, 30,115.38 and 6,744.32 is: 10,118.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.87 : 30,115.38 = 6,744.32 : x
  2. Step 2: Convert to fraction form
    20,072.87/30,115.38 = 6,744.32/x
  3. Step 3: Cross multiply
    20,072.87x = 30,115.38 × 6,744.32
  4. Step 4: Simplify right side
    20,072.87x = 203,107,759.64
  5. Step 5: Solve for x
    x = 203,107,759.64/20,072.87
  6. Step 6: Final answer
    x = 10,118.52

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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.