Home / 20,107.59-30,154.78-6,777.01

Finding the Fourth Proportional to 20,107.59, 30,154.78 and 6,777.01

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Solution

The fourth proportional to 20,107.59, 30,154.78 and 6,777.01 is: 10,163.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.59 : 30,154.78 = 6,777.01 : x
  2. Step 2: Convert to fraction form
    20,107.59/30,154.78 = 6,777.01/x
  3. Step 3: Cross multiply
    20,107.59x = 30,154.78 × 6,777.01
  4. Step 4: Simplify right side
    20,107.59x = 204,359,245.61
  5. Step 5: Solve for x
    x = 204,359,245.61/20,107.59
  6. Step 6: Final answer
    x = 10,163.29

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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.