Home / 28,660.67-39,552.12-15,741

Finding the Fourth Proportional to 28,660.67, 39,552.12 and 15,741

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Solution

The fourth proportional to 28,660.67, 39,552.12 and 15,741 is: 21,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.67 : 39,552.12 = 15,741 : x
  2. Step 2: Convert to fraction form
    28,660.67/39,552.12 = 15,741/x
  3. Step 3: Cross multiply
    28,660.67x = 39,552.12 × 15,741
  4. Step 4: Simplify right side
    28,660.67x = 622,589,920.92
  5. Step 5: Solve for x
    x = 622,589,920.92/28,660.67
  6. Step 6: Final answer
    x = 21,722.80

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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.