Home / 20,253.19-30,380.70-6,212.20

Finding the Fourth Proportional to 20,253.19, 30,380.70 and 6,212.20

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Solution

The fourth proportional to 20,253.19, 30,380.70 and 6,212.20 is: 9,318.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.19 : 30,380.70 = 6,212.20 : x
  2. Step 2: Convert to fraction form
    20,253.19/30,380.70 = 6,212.20/x
  3. Step 3: Cross multiply
    20,253.19x = 30,380.70 × 6,212.20
  4. Step 4: Simplify right side
    20,253.19x = 188,730,984.54
  5. Step 5: Solve for x
    x = 188,730,984.54/20,253.19
  6. Step 6: Final answer
    x = 9,318.58

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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.