Home / 20,209.62-30,300.66-10,340.85

Finding the Fourth Proportional to 20,209.62, 30,300.66 and 10,340.85

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Solution

The fourth proportional to 20,209.62, 30,300.66 and 10,340.85 is: 15,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.62 : 30,300.66 = 10,340.85 : x
  2. Step 2: Convert to fraction form
    20,209.62/30,300.66 = 10,340.85/x
  3. Step 3: Cross multiply
    20,209.62x = 30,300.66 × 10,340.85
  4. Step 4: Simplify right side
    20,209.62x = 313,334,579.96
  5. Step 5: Solve for x
    x = 313,334,579.96/20,209.62
  6. Step 6: Final answer
    x = 15,504.23

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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.