Home / 22,163.11-30,569.43-13,203.70

Finding the Fourth Proportional to 22,163.11, 30,569.43 and 13,203.70

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Solution

The fourth proportional to 22,163.11, 30,569.43 and 13,203.70 is: 18,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,163.11 : 30,569.43 = 13,203.70 : x
  2. Step 2: Convert to fraction form
    22,163.11/30,569.43 = 13,203.70/x
  3. Step 3: Cross multiply
    22,163.11x = 30,569.43 × 13,203.70
  4. Step 4: Simplify right side
    22,163.11x = 403,629,582.89
  5. Step 5: Solve for x
    x = 403,629,582.89/22,163.11
  6. Step 6: Final answer
    x = 18,211.78

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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.