Home / 20,504.01-30,765.74-12,200.43

Finding the Fourth Proportional to 20,504.01, 30,765.74 and 12,200.43

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Solution

The fourth proportional to 20,504.01, 30,765.74 and 12,200.43 is: 18,306.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.01 : 30,765.74 = 12,200.43 : x
  2. Step 2: Convert to fraction form
    20,504.01/30,765.74 = 12,200.43/x
  3. Step 3: Cross multiply
    20,504.01x = 30,765.74 × 12,200.43
  4. Step 4: Simplify right side
    20,504.01x = 375,355,257.27
  5. Step 5: Solve for x
    x = 375,355,257.27/20,504.01
  6. Step 6: Final answer
    x = 18,306.43

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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.