Home / 20,226.27-30,353.07-7,078.76

Finding the Fourth Proportional to 20,226.27, 30,353.07 and 7,078.76

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Solution

The fourth proportional to 20,226.27, 30,353.07 and 7,078.76 is: 10,622.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.27 : 30,353.07 = 7,078.76 : x
  2. Step 2: Convert to fraction form
    20,226.27/30,353.07 = 7,078.76/x
  3. Step 3: Cross multiply
    20,226.27x = 30,353.07 × 7,078.76
  4. Step 4: Simplify right side
    20,226.27x = 214,861,946.03
  5. Step 5: Solve for x
    x = 214,861,946.03/20,226.27
  6. Step 6: Final answer
    x = 10,622.91

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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.