Home / 20,560.41-28,373.62-12,062.09

Finding the Fourth Proportional to 20,560.41, 28,373.62 and 12,062.09

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Solution

The fourth proportional to 20,560.41, 28,373.62 and 12,062.09 is: 16,645.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.41 : 28,373.62 = 12,062.09 : x
  2. Step 2: Convert to fraction form
    20,560.41/28,373.62 = 12,062.09/x
  3. Step 3: Cross multiply
    20,560.41x = 28,373.62 × 12,062.09
  4. Step 4: Simplify right side
    20,560.41x = 342,245,158.07
  5. Step 5: Solve for x
    x = 342,245,158.07/20,560.41
  6. Step 6: Final answer
    x = 16,645.83

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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.