Home / 19,579.34-27,019.90-11,081.46

Finding the Fourth Proportional to 19,579.34, 27,019.90 and 11,081.46

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Solution

The fourth proportional to 19,579.34, 27,019.90 and 11,081.46 is: 15,292.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.34 : 27,019.90 = 11,081.46 : x
  2. Step 2: Convert to fraction form
    19,579.34/27,019.90 = 11,081.46/x
  3. Step 3: Cross multiply
    19,579.34x = 27,019.90 × 11,081.46
  4. Step 4: Simplify right side
    19,579.34x = 299,419,993.90
  5. Step 5: Solve for x
    x = 299,419,993.90/19,579.34
  6. Step 6: Final answer
    x = 15,292.65

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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.