Home / 28,183.98-38,895.12-15,608.73

Finding the Fourth Proportional to 28,183.98, 38,895.12 and 15,608.73

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Solution

The fourth proportional to 28,183.98, 38,895.12 and 15,608.73 is: 21,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.98 : 38,895.12 = 15,608.73 : x
  2. Step 2: Convert to fraction form
    28,183.98/38,895.12 = 15,608.73/x
  3. Step 3: Cross multiply
    28,183.98x = 38,895.12 × 15,608.73
  4. Step 4: Simplify right side
    28,183.98x = 607,103,426.40
  5. Step 5: Solve for x
    x = 607,103,426.40/28,183.98
  6. Step 6: Final answer
    x = 21,540.73

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Double scale
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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.