Home / 20,163.53-27,818.28-12,202.85

Finding the Fourth Proportional to 20,163.53, 27,818.28 and 12,202.85

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Solution

The fourth proportional to 20,163.53, 27,818.28 and 12,202.85 is: 16,835.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.53 : 27,818.28 = 12,202.85 : x
  2. Step 2: Convert to fraction form
    20,163.53/27,818.28 = 12,202.85/x
  3. Step 3: Cross multiply
    20,163.53x = 27,818.28 × 12,202.85
  4. Step 4: Simplify right side
    20,163.53x = 339,462,159.01
  5. Step 5: Solve for x
    x = 339,462,159.01/20,163.53
  6. Step 6: Final answer
    x = 16,835.46

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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.