Home / 20,022.45-30,000.69-6,867.60

Finding the Fourth Proportional to 20,022.45, 30,000.69 and 6,867.60

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Solution

The fourth proportional to 20,022.45, 30,000.69 and 6,867.60 is: 10,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.45 : 30,000.69 = 6,867.60 : x
  2. Step 2: Convert to fraction form
    20,022.45/30,000.69 = 6,867.60/x
  3. Step 3: Cross multiply
    20,022.45x = 30,000.69 × 6,867.60
  4. Step 4: Simplify right side
    20,022.45x = 206,032,738.64
  5. Step 5: Solve for x
    x = 206,032,738.64/20,022.45
  6. Step 6: Final answer
    x = 10,290.09

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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.