Home / 20,750.66-28,631.84-11,796.62

Finding the Fourth Proportional to 20,750.66, 28,631.84 and 11,796.62

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Solution

The fourth proportional to 20,750.66, 28,631.84 and 11,796.62 is: 16,277.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.66 : 28,631.84 = 11,796.62 : x
  2. Step 2: Convert to fraction form
    20,750.66/28,631.84 = 11,796.62/x
  3. Step 3: Cross multiply
    20,750.66x = 28,631.84 × 11,796.62
  4. Step 4: Simplify right side
    20,750.66x = 337,758,936.38
  5. Step 5: Solve for x
    x = 337,758,936.38/20,750.66
  6. Step 6: Final answer
    x = 16,277.02

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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.