Home / 20,129.06-30,198.33-19,794.35

Finding the Fourth Proportional to 20,129.06, 30,198.33 and 19,794.35

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Solution

The fourth proportional to 20,129.06, 30,198.33 and 19,794.35 is: 29,696.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129.06 : 30,198.33 = 19,794.35 : x
  2. Step 2: Convert to fraction form
    20,129.06/30,198.33 = 19,794.35/x
  3. Step 3: Cross multiply
    20,129.06x = 30,198.33 × 19,794.35
  4. Step 4: Simplify right side
    20,129.06x = 597,756,313.44
  5. Step 5: Solve for x
    x = 597,756,313.44/20,129.06
  6. Step 6: Final answer
    x = 29,696.19

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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.