Home / 20,189.82-30,251.41-11,732.59

Finding the Fourth Proportional to 20,189.82, 30,251.41 and 11,732.59

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Solution

The fourth proportional to 20,189.82, 30,251.41 and 11,732.59 is: 17,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.82 : 30,251.41 = 11,732.59 : x
  2. Step 2: Convert to fraction form
    20,189.82/30,251.41 = 11,732.59/x
  3. Step 3: Cross multiply
    20,189.82x = 30,251.41 × 11,732.59
  4. Step 4: Simplify right side
    20,189.82x = 354,927,442.93
  5. Step 5: Solve for x
    x = 354,927,442.93/20,189.82
  6. Step 6: Final answer
    x = 17,579.52

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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.