Home / 20,198.22-30,292.47-8,505.06

Finding the Fourth Proportional to 20,198.22, 30,292.47 and 8,505.06

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Solution

The fourth proportional to 20,198.22, 30,292.47 and 8,505.06 is: 12,755.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.22 : 30,292.47 = 8,505.06 : x
  2. Step 2: Convert to fraction form
    20,198.22/30,292.47 = 8,505.06/x
  3. Step 3: Cross multiply
    20,198.22x = 30,292.47 × 8,505.06
  4. Step 4: Simplify right side
    20,198.22x = 257,639,274.90
  5. Step 5: Solve for x
    x = 257,639,274.90/20,198.22
  6. Step 6: Final answer
    x = 12,755.54

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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.