Home / 20,836.06-28,753.71-11,404.54

Finding the Fourth Proportional to 20,836.06, 28,753.71 and 11,404.54

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Solution

The fourth proportional to 20,836.06, 28,753.71 and 11,404.54 is: 15,738.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.06 : 28,753.71 = 11,404.54 : x
  2. Step 2: Convert to fraction form
    20,836.06/28,753.71 = 11,404.54/x
  3. Step 3: Cross multiply
    20,836.06x = 28,753.71 × 11,404.54
  4. Step 4: Simplify right side
    20,836.06x = 327,922,835.84
  5. Step 5: Solve for x
    x = 327,922,835.84/20,836.06
  6. Step 6: Final answer
    x = 15,738.24

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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.