Home / 20,180.96-27,849.86-11,228.84

Finding the Fourth Proportional to 20,180.96, 27,849.86 and 11,228.84

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Solution

The fourth proportional to 20,180.96, 27,849.86 and 11,228.84 is: 15,495.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.96 : 27,849.86 = 11,228.84 : x
  2. Step 2: Convert to fraction form
    20,180.96/27,849.86 = 11,228.84/x
  3. Step 3: Cross multiply
    20,180.96x = 27,849.86 × 11,228.84
  4. Step 4: Simplify right side
    20,180.96x = 312,721,650.03
  5. Step 5: Solve for x
    x = 312,721,650.03/20,180.96
  6. Step 6: Final answer
    x = 15,495.88

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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.