Home / 20,113.74-30,172.68-6,966.09

Finding the Fourth Proportional to 20,113.74, 30,172.68 and 6,966.09

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Solution

The fourth proportional to 20,113.74, 30,172.68 and 6,966.09 is: 10,449.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.74 : 30,172.68 = 6,966.09 : x
  2. Step 2: Convert to fraction form
    20,113.74/30,172.68 = 6,966.09/x
  3. Step 3: Cross multiply
    20,113.74x = 30,172.68 × 6,966.09
  4. Step 4: Simplify right side
    20,113.74x = 210,185,604.42
  5. Step 5: Solve for x
    x = 210,185,604.42/20,113.74
  6. Step 6: Final answer
    x = 10,449.85

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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.