Home / 20,282.44-30,402.12-11,966.37

Finding the Fourth Proportional to 20,282.44, 30,402.12 and 11,966.37

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Solution

The fourth proportional to 20,282.44, 30,402.12 and 11,966.37 is: 17,936.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282.44 : 30,402.12 = 11,966.37 : x
  2. Step 2: Convert to fraction form
    20,282.44/30,402.12 = 11,966.37/x
  3. Step 3: Cross multiply
    20,282.44x = 30,402.12 × 11,966.37
  4. Step 4: Simplify right side
    20,282.44x = 363,803,016.70
  5. Step 5: Solve for x
    x = 363,803,016.70/20,282.44
  6. Step 6: Final answer
    x = 17,936.85

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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.