Home / 20,181.92-30,269.30-6,138.54

Finding the Fourth Proportional to 20,181.92, 30,269.30 and 6,138.54

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Solution

The fourth proportional to 20,181.92, 30,269.30 and 6,138.54 is: 9,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.92 : 30,269.30 = 6,138.54 : x
  2. Step 2: Convert to fraction form
    20,181.92/30,269.30 = 6,138.54/x
  3. Step 3: Cross multiply
    20,181.92x = 30,269.30 × 6,138.54
  4. Step 4: Simplify right side
    20,181.92x = 185,809,278.13
  5. Step 5: Solve for x
    x = 185,809,278.13/20,181.92
  6. Step 6: Final answer
    x = 9,206.72

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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.