Home / 20,116.06-27,760.19-11,163.57

Finding the Fourth Proportional to 20,116.06, 27,760.19 and 11,163.57

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Solution

The fourth proportional to 20,116.06, 27,760.19 and 11,163.57 is: 15,405.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.06 : 27,760.19 = 11,163.57 : x
  2. Step 2: Convert to fraction form
    20,116.06/27,760.19 = 11,163.57/x
  3. Step 3: Cross multiply
    20,116.06x = 27,760.19 × 11,163.57
  4. Step 4: Simplify right side
    20,116.06x = 309,902,820.51
  5. Step 5: Solve for x
    x = 309,902,820.51/20,116.06
  6. Step 6: Final answer
    x = 15,405.74

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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.