Home / 20,260.92-30,379.37-6,929.20

Finding the Fourth Proportional to 20,260.92, 30,379.37 and 6,929.20

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Solution

The fourth proportional to 20,260.92, 30,379.37 and 6,929.20 is: 10,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.92 : 30,379.37 = 6,929.20 : x
  2. Step 2: Convert to fraction form
    20,260.92/30,379.37 = 6,929.20/x
  3. Step 3: Cross multiply
    20,260.92x = 30,379.37 × 6,929.20
  4. Step 4: Simplify right side
    20,260.92x = 210,504,671.98
  5. Step 5: Solve for x
    x = 210,504,671.98/20,260.92
  6. Step 6: Final answer
    x = 10,389.69

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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.