Home / 20,200.74-27,876.39-11,248.05

Finding the Fourth Proportional to 20,200.74, 27,876.39 and 11,248.05

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Solution

The fourth proportional to 20,200.74, 27,876.39 and 11,248.05 is: 15,521.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.74 : 27,876.39 = 11,248.05 : x
  2. Step 2: Convert to fraction form
    20,200.74/27,876.39 = 11,248.05/x
  3. Step 3: Cross multiply
    20,200.74x = 27,876.39 × 11,248.05
  4. Step 4: Simplify right side
    20,200.74x = 313,555,028.54
  5. Step 5: Solve for x
    x = 313,555,028.54/20,200.74
  6. Step 6: Final answer
    x = 15,521.96

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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.