Home / 19,204.35-28,819.57-11,786.16

Finding the Fourth Proportional to 19,204.35, 28,819.57 and 11,786.16

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Solution

The fourth proportional to 19,204.35, 28,819.57 and 11,786.16 is: 17,687.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,204.35 : 28,819.57 = 11,786.16 : x
  2. Step 2: Convert to fraction form
    19,204.35/28,819.57 = 11,786.16/x
  3. Step 3: Cross multiply
    19,204.35x = 28,819.57 × 11,786.16
  4. Step 4: Simplify right side
    19,204.35x = 339,672,063.15
  5. Step 5: Solve for x
    x = 339,672,063.15/19,204.35
  6. Step 6: Final answer
    x = 17,687.25

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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.