Home / 20,261.18-27,961.83-11,310.43

Finding the Fourth Proportional to 20,261.18, 27,961.83 and 11,310.43

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Solution

The fourth proportional to 20,261.18, 27,961.83 and 11,310.43 is: 15,609.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.18 : 27,961.83 = 11,310.43 : x
  2. Step 2: Convert to fraction form
    20,261.18/27,961.83 = 11,310.43/x
  3. Step 3: Cross multiply
    20,261.18x = 27,961.83 × 11,310.43
  4. Step 4: Simplify right side
    20,261.18x = 316,260,320.89
  5. Step 5: Solve for x
    x = 316,260,320.89/20,261.18
  6. Step 6: Final answer
    x = 15,609.18

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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.