Home / 20,743.73-30,935.06-19,579.15

Finding the Fourth Proportional to 20,743.73, 30,935.06 and 19,579.15

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Solution

The fourth proportional to 20,743.73, 30,935.06 and 19,579.15 is: 29,198.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.73 : 30,935.06 = 19,579.15 : x
  2. Step 2: Convert to fraction form
    20,743.73/30,935.06 = 19,579.15/x
  3. Step 3: Cross multiply
    20,743.73x = 30,935.06 × 19,579.15
  4. Step 4: Simplify right side
    20,743.73x = 605,682,139.13
  5. Step 5: Solve for x
    x = 605,682,139.13/20,743.73
  6. Step 6: Final answer
    x = 29,198.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.