Home / 20,208.62-30,299.16-10,339.85

Finding the Fourth Proportional to 20,208.62, 30,299.16 and 10,339.85

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Solution

The fourth proportional to 20,208.62, 30,299.16 and 10,339.85 is: 15,502.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.62 : 30,299.16 = 10,339.85 : x
  2. Step 2: Convert to fraction form
    20,208.62/30,299.16 = 10,339.85/x
  3. Step 3: Cross multiply
    20,208.62x = 30,299.16 × 10,339.85
  4. Step 4: Simplify right side
    20,208.62x = 313,288,769.53
  5. Step 5: Solve for x
    x = 313,288,769.53/20,208.62
  6. Step 6: Final answer
    x = 15,502.73

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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.