Home / 20,180.80-27,849.45-11,228.41

Finding the Fourth Proportional to 20,180.80, 27,849.45 and 11,228.41

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Solution

The fourth proportional to 20,180.80, 27,849.45 and 11,228.41 is: 15,495.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.80 : 27,849.45 = 11,228.41 : x
  2. Step 2: Convert to fraction form
    20,180.80/27,849.45 = 11,228.41/x
  3. Step 3: Cross multiply
    20,180.80x = 27,849.45 × 11,228.41
  4. Step 4: Simplify right side
    20,180.80x = 312,705,042.87
  5. Step 5: Solve for x
    x = 312,705,042.87/20,180.80
  6. Step 6: Final answer
    x = 15,495.18

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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.