Home / 20,134.98-27,786.24-12,177.19

Finding the Fourth Proportional to 20,134.98, 27,786.24 and 12,177.19

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Solution

The fourth proportional to 20,134.98, 27,786.24 and 12,177.19 is: 16,804.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.98 : 27,786.24 = 12,177.19 : x
  2. Step 2: Convert to fraction form
    20,134.98/27,786.24 = 12,177.19/x
  3. Step 3: Cross multiply
    20,134.98x = 27,786.24 × 12,177.19
  4. Step 4: Simplify right side
    20,134.98x = 338,358,202.30
  5. Step 5: Solve for x
    x = 338,358,202.30/20,134.98
  6. Step 6: Final answer
    x = 16,804.50

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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.