Home / 20,200.08-30,279.06-11,873.28

Finding the Fourth Proportional to 20,200.08, 30,279.06 and 11,873.28

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Solution

The fourth proportional to 20,200.08, 30,279.06 and 11,873.28 is: 17,797.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.08 : 30,279.06 = 11,873.28 : x
  2. Step 2: Convert to fraction form
    20,200.08/30,279.06 = 11,873.28/x
  3. Step 3: Cross multiply
    20,200.08x = 30,279.06 × 11,873.28
  4. Step 4: Simplify right side
    20,200.08x = 359,511,757.52
  5. Step 5: Solve for x
    x = 359,511,757.52/20,200.08
  6. Step 6: Final answer
    x = 17,797.54

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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.