Home / 20,078.15-30,119.27-6,927.44

Finding the Fourth Proportional to 20,078.15, 30,119.27 and 6,927.44

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Solution

The fourth proportional to 20,078.15, 30,119.27 and 6,927.44 is: 10,391.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078.15 : 30,119.27 = 6,927.44 : x
  2. Step 2: Convert to fraction form
    20,078.15/30,119.27 = 6,927.44/x
  3. Step 3: Cross multiply
    20,078.15x = 30,119.27 × 6,927.44
  4. Step 4: Simplify right side
    20,078.15x = 208,649,250.54
  5. Step 5: Solve for x
    x = 208,649,250.54/20,078.15
  6. Step 6: Final answer
    x = 10,391.86

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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.