Home / 20,163.47-27,826.52-11,210.83

Finding the Fourth Proportional to 20,163.47, 27,826.52 and 11,210.83

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Solution

The fourth proportional to 20,163.47, 27,826.52 and 11,210.83 is: 15,471.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.47 : 27,826.52 = 11,210.83 : x
  2. Step 2: Convert to fraction form
    20,163.47/27,826.52 = 11,210.83/x
  3. Step 3: Cross multiply
    20,163.47x = 27,826.52 × 11,210.83
  4. Step 4: Simplify right side
    20,163.47x = 311,958,259.59
  5. Step 5: Solve for x
    x = 311,958,259.59/20,163.47
  6. Step 6: Final answer
    x = 15,471.46

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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.