Home / 19,719.03-27,212.23-12,645.44

Finding the Fourth Proportional to 19,719.03, 27,212.23 and 12,645.44

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Solution

The fourth proportional to 19,719.03, 27,212.23 and 12,645.44 is: 17,450.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.03 : 27,212.23 = 12,645.44 : x
  2. Step 2: Convert to fraction form
    19,719.03/27,212.23 = 12,645.44/x
  3. Step 3: Cross multiply
    19,719.03x = 27,212.23 × 12,645.44
  4. Step 4: Simplify right side
    19,719.03x = 344,110,621.73
  5. Step 5: Solve for x
    x = 344,110,621.73/19,719.03
  6. Step 6: Final answer
    x = 17,450.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.