Home / 20,152.87-30,229.27-5,361.79

Finding the Fourth Proportional to 20,152.87, 30,229.27 and 5,361.79

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Solution

The fourth proportional to 20,152.87, 30,229.27 and 5,361.79 is: 8,042.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.87 : 30,229.27 = 5,361.79 : x
  2. Step 2: Convert to fraction form
    20,152.87/30,229.27 = 5,361.79/x
  3. Step 3: Cross multiply
    20,152.87x = 30,229.27 × 5,361.79
  4. Step 4: Simplify right side
    20,152.87x = 162,082,819.64
  5. Step 5: Solve for x
    x = 162,082,819.64/20,152.87
  6. Step 6: Final answer
    x = 8,042.67

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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.