Home / 20,234.78-30,356.68-6,196.78

Finding the Fourth Proportional to 20,234.78, 30,356.68 and 6,196.78

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Solution

The fourth proportional to 20,234.78, 30,356.68 and 6,196.78 is: 9,296.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.78 : 30,356.68 = 6,196.78 : x
  2. Step 2: Convert to fraction form
    20,234.78/30,356.68 = 6,196.78/x
  3. Step 3: Cross multiply
    20,234.78x = 30,356.68 × 6,196.78
  4. Step 4: Simplify right side
    20,234.78x = 188,113,667.49
  5. Step 5: Solve for x
    x = 188,113,667.49/20,234.78
  6. Step 6: Final answer
    x = 9,296.55

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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.