Home / 20,833.97-28,723.73-13,277.54

Finding the Fourth Proportional to 20,833.97, 28,723.73 and 13,277.54

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Solution

The fourth proportional to 20,833.97, 28,723.73 and 13,277.54 is: 18,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.97 : 28,723.73 = 13,277.54 : x
  2. Step 2: Convert to fraction form
    20,833.97/28,723.73 = 13,277.54/x
  3. Step 3: Cross multiply
    20,833.97x = 28,723.73 × 13,277.54
  4. Step 4: Simplify right side
    20,833.97x = 381,380,474.02
  5. Step 5: Solve for x
    x = 381,380,474.02/20,833.97
  6. Step 6: Final answer
    x = 18,305.70

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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.