Home / 19,579.10-27,020.46-11,081.20

Finding the Fourth Proportional to 19,579.10, 27,020.46 and 11,081.20

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Solution

The fourth proportional to 19,579.10, 27,020.46 and 11,081.20 is: 15,292.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.10 : 27,020.46 = 11,081.20 : x
  2. Step 2: Convert to fraction form
    19,579.10/27,020.46 = 11,081.20/x
  3. Step 3: Cross multiply
    19,579.10x = 27,020.46 × 11,081.20
  4. Step 4: Simplify right side
    19,579.10x = 299,419,121.35
  5. Step 5: Solve for x
    x = 299,419,121.35/19,579.10
  6. Step 6: Final answer
    x = 15,292.79

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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.