Home / 20,873.29-28,804.92-11,441.80

Finding the Fourth Proportional to 20,873.29, 28,804.92 and 11,441.80

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Solution

The fourth proportional to 20,873.29, 28,804.92 and 11,441.80 is: 15,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.29 : 28,804.92 = 11,441.80 : x
  2. Step 2: Convert to fraction form
    20,873.29/28,804.92 = 11,441.80/x
  3. Step 3: Cross multiply
    20,873.29x = 28,804.92 × 11,441.80
  4. Step 4: Simplify right side
    20,873.29x = 329,580,133.66
  5. Step 5: Solve for x
    x = 329,580,133.66/20,873.29
  6. Step 6: Final answer
    x = 15,789.56

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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.