Home / 20,198.77-30,300.23-7,729.27

Finding the Fourth Proportional to 20,198.77, 30,300.23 and 7,729.27

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Solution

The fourth proportional to 20,198.77, 30,300.23 and 7,729.27 is: 11,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.77 : 30,300.23 = 7,729.27 : x
  2. Step 2: Convert to fraction form
    20,198.77/30,300.23 = 7,729.27/x
  3. Step 3: Cross multiply
    20,198.77x = 30,300.23 × 7,729.27
  4. Step 4: Simplify right side
    20,198.77x = 234,198,729.27
  5. Step 5: Solve for x
    x = 234,198,729.27/20,198.77
  6. Step 6: Final answer
    x = 11,594.70

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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.