Home / 20,116.89-27,760.34-11,042.06

Finding the Fourth Proportional to 20,116.89, 27,760.34 and 11,042.06

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Solution

The fourth proportional to 20,116.89, 27,760.34 and 11,042.06 is: 15,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.89 : 27,760.34 = 11,042.06 : x
  2. Step 2: Convert to fraction form
    20,116.89/27,760.34 = 11,042.06/x
  3. Step 3: Cross multiply
    20,116.89x = 27,760.34 × 11,042.06
  4. Step 4: Simplify right side
    20,116.89x = 306,531,228.70
  5. Step 5: Solve for x
    x = 306,531,228.70/20,116.89
  6. Step 6: Final answer
    x = 15,237.51

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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.