Home / 20,103.73-30,156.84-6,775.60

Finding the Fourth Proportional to 20,103.73, 30,156.84 and 6,775.60

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Solution

The fourth proportional to 20,103.73, 30,156.84 and 6,775.60 is: 10,163.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.73 : 30,156.84 = 6,775.60 : x
  2. Step 2: Convert to fraction form
    20,103.73/30,156.84 = 6,775.60/x
  3. Step 3: Cross multiply
    20,103.73x = 30,156.84 × 6,775.60
  4. Step 4: Simplify right side
    20,103.73x = 204,330,685.10
  5. Step 5: Solve for x
    x = 204,330,685.10/20,103.73
  6. Step 6: Final answer
    x = 10,163.82

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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.