Home / 20,246.46-30,370.40-5,455.73

Finding the Fourth Proportional to 20,246.46, 30,370.40 and 5,455.73

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Solution

The fourth proportional to 20,246.46, 30,370.40 and 5,455.73 is: 8,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.46 : 30,370.40 = 5,455.73 : x
  2. Step 2: Convert to fraction form
    20,246.46/30,370.40 = 5,455.73/x
  3. Step 3: Cross multiply
    20,246.46x = 30,370.40 × 5,455.73
  4. Step 4: Simplify right side
    20,246.46x = 165,692,771.50
  5. Step 5: Solve for x
    x = 165,692,771.50/20,246.46
  6. Step 6: Final answer
    x = 8,183.79

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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.