Home / 20,118.42-27,763.58-12,165.94

Finding the Fourth Proportional to 20,118.42, 27,763.58 and 12,165.94

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Solution

The fourth proportional to 20,118.42, 27,763.58 and 12,165.94 is: 16,789.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.42 : 27,763.58 = 12,165.94 : x
  2. Step 2: Convert to fraction form
    20,118.42/27,763.58 = 12,165.94/x
  3. Step 3: Cross multiply
    20,118.42x = 27,763.58 × 12,165.94
  4. Step 4: Simplify right side
    20,118.42x = 337,770,048.47
  5. Step 5: Solve for x
    x = 337,770,048.47/20,118.42
  6. Step 6: Final answer
    x = 16,789.09

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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.