Home / 20,087.82-30,138.96-6,941.52

Finding the Fourth Proportional to 20,087.82, 30,138.96 and 6,941.52

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Solution

The fourth proportional to 20,087.82, 30,138.96 and 6,941.52 is: 10,414.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.82 : 30,138.96 = 6,941.52 : x
  2. Step 2: Convert to fraction form
    20,087.82/30,138.96 = 6,941.52/x
  3. Step 3: Cross multiply
    20,087.82x = 30,138.96 × 6,941.52
  4. Step 4: Simplify right side
    20,087.82x = 209,210,193.62
  5. Step 5: Solve for x
    x = 209,210,193.62/20,087.82
  6. Step 6: Final answer
    x = 10,414.78

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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.