Home / 20,346.56-30,519.52-8,506.68

Finding the Fourth Proportional to 20,346.56, 30,519.52 and 8,506.68

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Solution

The fourth proportional to 20,346.56, 30,519.52 and 8,506.68 is: 12,759.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346.56 : 30,519.52 = 8,506.68 : x
  2. Step 2: Convert to fraction form
    20,346.56/30,519.52 = 8,506.68/x
  3. Step 3: Cross multiply
    20,346.56x = 30,519.52 × 8,506.68
  4. Step 4: Simplify right side
    20,346.56x = 259,619,790.39
  5. Step 5: Solve for x
    x = 259,619,790.39/20,346.56
  6. Step 6: Final answer
    x = 12,759.89

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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.