Home / 20,767.23-28,660.77-11,816.73

Finding the Fourth Proportional to 20,767.23, 28,660.77 and 11,816.73

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Solution

The fourth proportional to 20,767.23, 28,660.77 and 11,816.73 is: 16,308.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.23 : 28,660.77 = 11,816.73 : x
  2. Step 2: Convert to fraction form
    20,767.23/28,660.77 = 11,816.73/x
  3. Step 3: Cross multiply
    20,767.23x = 28,660.77 × 11,816.73
  4. Step 4: Simplify right side
    20,767.23x = 338,676,580.68
  5. Step 5: Solve for x
    x = 338,676,580.68/20,767.23
  6. Step 6: Final answer
    x = 16,308.22

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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.