Home / 20,229.55-30,357.99-7,082.03

Finding the Fourth Proportional to 20,229.55, 30,357.99 and 7,082.03

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Solution

The fourth proportional to 20,229.55, 30,357.99 and 7,082.03 is: 10,627.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.55 : 30,357.99 = 7,082.03 : x
  2. Step 2: Convert to fraction form
    20,229.55/30,357.99 = 7,082.03/x
  3. Step 3: Cross multiply
    20,229.55x = 30,357.99 × 7,082.03
  4. Step 4: Simplify right side
    20,229.55x = 214,996,271.81
  5. Step 5: Solve for x
    x = 214,996,271.81/20,229.55
  6. Step 6: Final answer
    x = 10,627.83

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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.