Home / 20,099.10-27,738.81-11,601.39

Finding the Fourth Proportional to 20,099.10, 27,738.81 and 11,601.39

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Solution

The fourth proportional to 20,099.10, 27,738.81 and 11,601.39 is: 16,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.10 : 27,738.81 = 11,601.39 : x
  2. Step 2: Convert to fraction form
    20,099.10/27,738.81 = 11,601.39/x
  3. Step 3: Cross multiply
    20,099.10x = 27,738.81 × 11,601.39
  4. Step 4: Simplify right side
    20,099.10x = 321,808,752.95
  5. Step 5: Solve for x
    x = 321,808,752.95/20,099.10
  6. Step 6: Final answer
    x = 16,011.10

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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.