Home / 20,481.94-28,265.14-11,529.58

Finding the Fourth Proportional to 20,481.94, 28,265.14 and 11,529.58

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Solution

The fourth proportional to 20,481.94, 28,265.14 and 11,529.58 is: 15,910.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.94 : 28,265.14 = 11,529.58 : x
  2. Step 2: Convert to fraction form
    20,481.94/28,265.14 = 11,529.58/x
  3. Step 3: Cross multiply
    20,481.94x = 28,265.14 × 11,529.58
  4. Step 4: Simplify right side
    20,481.94x = 325,885,192.84
  5. Step 5: Solve for x
    x = 325,885,192.84/20,481.94
  6. Step 6: Final answer
    x = 15,910.86

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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.