Home / 20,119.03-27,764.99-12,156.64

Finding the Fourth Proportional to 20,119.03, 27,764.99 and 12,156.64

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Solution

The fourth proportional to 20,119.03, 27,764.99 and 12,156.64 is: 16,776.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.03 : 27,764.99 = 12,156.64 : x
  2. Step 2: Convert to fraction form
    20,119.03/27,764.99 = 12,156.64/x
  3. Step 3: Cross multiply
    20,119.03x = 27,764.99 × 12,156.64
  4. Step 4: Simplify right side
    20,119.03x = 337,529,115.74
  5. Step 5: Solve for x
    x = 337,529,115.74/20,119.03
  6. Step 6: Final answer
    x = 16,776.61

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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.