Home / 19,100.20-28,662.45-11,202.70

Finding the Fourth Proportional to 19,100.20, 28,662.45 and 11,202.70

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Solution

The fourth proportional to 19,100.20, 28,662.45 and 11,202.70 is: 16,811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.20 : 28,662.45 = 11,202.70 : x
  2. Step 2: Convert to fraction form
    19,100.20/28,662.45 = 11,202.70/x
  3. Step 3: Cross multiply
    19,100.20x = 28,662.45 × 11,202.70
  4. Step 4: Simplify right side
    19,100.20x = 321,096,828.62
  5. Step 5: Solve for x
    x = 321,096,828.62/19,100.20
  6. Step 6: Final answer
    x = 16,811.18

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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.