Home / 20,076.96-27,705.46-11,579.43

Finding the Fourth Proportional to 20,076.96, 27,705.46 and 11,579.43

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Solution

The fourth proportional to 20,076.96, 27,705.46 and 11,579.43 is: 15,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.96 : 27,705.46 = 11,579.43 : x
  2. Step 2: Convert to fraction form
    20,076.96/27,705.46 = 11,579.43/x
  3. Step 3: Cross multiply
    20,076.96x = 27,705.46 × 11,579.43
  4. Step 4: Simplify right side
    20,076.96x = 320,813,405.74
  5. Step 5: Solve for x
    x = 320,813,405.74/20,076.96
  6. Step 6: Final answer
    x = 15,979.18

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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.