Home / 20,794.16-28,701.11-11,846.99

Finding the Fourth Proportional to 20,794.16, 28,701.11 and 11,846.99

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Solution

The fourth proportional to 20,794.16, 28,701.11 and 11,846.99 is: 16,351.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.16 : 28,701.11 = 11,846.99 : x
  2. Step 2: Convert to fraction form
    20,794.16/28,701.11 = 11,846.99/x
  3. Step 3: Cross multiply
    20,794.16x = 28,701.11 × 11,846.99
  4. Step 4: Simplify right side
    20,794.16x = 340,021,864.53
  5. Step 5: Solve for x
    x = 340,021,864.53/20,794.16
  6. Step 6: Final answer
    x = 16,351.79

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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.