Home / 20,119.46-30,163.41-12,708.36

Finding the Fourth Proportional to 20,119.46, 30,163.41 and 12,708.36

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Solution

The fourth proportional to 20,119.46, 30,163.41 and 12,708.36 is: 19,052.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.46 : 30,163.41 = 12,708.36 : x
  2. Step 2: Convert to fraction form
    20,119.46/30,163.41 = 12,708.36/x
  3. Step 3: Cross multiply
    20,119.46x = 30,163.41 × 12,708.36
  4. Step 4: Simplify right side
    20,119.46x = 383,327,473.11
  5. Step 5: Solve for x
    x = 383,327,473.11/20,119.46
  6. Step 6: Final answer
    x = 19,052.58

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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.