Home / 20,002.55-30,007.46-6,856.25

Finding the Fourth Proportional to 20,002.55, 30,007.46 and 6,856.25

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Solution

The fourth proportional to 20,002.55, 30,007.46 and 6,856.25 is: 10,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,002.55 : 30,007.46 = 6,856.25 : x
  2. Step 2: Convert to fraction form
    20,002.55/30,007.46 = 6,856.25/x
  3. Step 3: Cross multiply
    20,002.55x = 30,007.46 × 6,856.25
  4. Step 4: Simplify right side
    20,002.55x = 205,738,514.73
  5. Step 5: Solve for x
    x = 205,738,514.73/20,002.55
  6. Step 6: Final answer
    x = 10,285.62

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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.