Home / 20,112.22-30,172.38-6,964.30

Finding the Fourth Proportional to 20,112.22, 30,172.38 and 6,964.30

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Solution

The fourth proportional to 20,112.22, 30,172.38 and 6,964.30 is: 10,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.22 : 30,172.38 = 6,964.30 : x
  2. Step 2: Convert to fraction form
    20,112.22/30,172.38 = 6,964.30/x
  3. Step 3: Cross multiply
    20,112.22x = 30,172.38 × 6,964.30
  4. Step 4: Simplify right side
    20,112.22x = 210,129,506.03
  5. Step 5: Solve for x
    x = 210,129,506.03/20,112.22
  6. Step 6: Final answer
    x = 10,447.85

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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.