Home / 20,029.14-30,045.74-6,879.78

Finding the Fourth Proportional to 20,029.14, 30,045.74 and 6,879.78

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Solution

The fourth proportional to 20,029.14, 30,045.74 and 6,879.78 is: 10,320.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.14 : 30,045.74 = 6,879.78 : x
  2. Step 2: Convert to fraction form
    20,029.14/30,045.74 = 6,879.78/x
  3. Step 3: Cross multiply
    20,029.14x = 30,045.74 × 6,879.78
  4. Step 4: Simplify right side
    20,029.14x = 206,708,046.74
  5. Step 5: Solve for x
    x = 206,708,046.74/20,029.14
  6. Step 6: Final answer
    x = 10,320.37

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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.