Home / 28,098.77-38,778.55-16,771.73

Finding the Fourth Proportional to 28,098.77, 38,778.55 and 16,771.73

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Solution

The fourth proportional to 28,098.77, 38,778.55 and 16,771.73 is: 23,146.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098.77 : 38,778.55 = 16,771.73 : x
  2. Step 2: Convert to fraction form
    28,098.77/38,778.55 = 16,771.73/x
  3. Step 3: Cross multiply
    28,098.77x = 38,778.55 × 16,771.73
  4. Step 4: Simplify right side
    28,098.77x = 650,383,134.57
  5. Step 5: Solve for x
    x = 650,383,134.57/28,098.77
  6. Step 6: Final answer
    x = 23,146.32

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Half 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.