Home / 19,879.27-27,422.38-12,598.03

Finding the Fourth Proportional to 19,879.27, 27,422.38 and 12,598.03

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Solution

The fourth proportional to 19,879.27, 27,422.38 and 12,598.03 is: 17,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.27 : 27,422.38 = 12,598.03 : x
  2. Step 2: Convert to fraction form
    19,879.27/27,422.38 = 12,598.03/x
  3. Step 3: Cross multiply
    19,879.27x = 27,422.38 × 12,598.03
  4. Step 4: Simplify right side
    19,879.27x = 345,467,797.30
  5. Step 5: Solve for x
    x = 345,467,797.30/19,879.27
  6. Step 6: Final answer
    x = 17,378.30

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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.