Home / 20,118.21-27,760.29-12,049.97

Finding the Fourth Proportional to 20,118.21, 27,760.29 and 12,049.97

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Solution

The fourth proportional to 20,118.21, 27,760.29 and 12,049.97 is: 16,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.21 : 27,760.29 = 12,049.97 : x
  2. Step 2: Convert to fraction form
    20,118.21/27,760.29 = 12,049.97/x
  3. Step 3: Cross multiply
    20,118.21x = 27,760.29 × 12,049.97
  4. Step 4: Simplify right side
    20,118.21x = 334,510,522.89
  5. Step 5: Solve for x
    x = 334,510,522.89/20,118.21
  6. Step 6: Final answer
    x = 16,627.25

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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.