Home / 20,163.32-27,825.49-12,203.55

Finding the Fourth Proportional to 20,163.32, 27,825.49 and 12,203.55

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Solution

The fourth proportional to 20,163.32, 27,825.49 and 12,203.55 is: 16,840.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.32 : 27,825.49 = 12,203.55 : x
  2. Step 2: Convert to fraction form
    20,163.32/27,825.49 = 12,203.55/x
  3. Step 3: Cross multiply
    20,163.32x = 27,825.49 × 12,203.55
  4. Step 4: Simplify right side
    20,163.32x = 339,569,758.49
  5. Step 5: Solve for x
    x = 339,569,758.49/20,163.32
  6. Step 6: Final answer
    x = 16,840.96

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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.