Home / 20,003.22-27,608.28-11,511.06

Finding the Fourth Proportional to 20,003.22, 27,608.28 and 11,511.06

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Solution

The fourth proportional to 20,003.22, 27,608.28 and 11,511.06 is: 15,887.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.22 : 27,608.28 = 11,511.06 : x
  2. Step 2: Convert to fraction form
    20,003.22/27,608.28 = 11,511.06/x
  3. Step 3: Cross multiply
    20,003.22x = 27,608.28 × 11,511.06
  4. Step 4: Simplify right side
    20,003.22x = 317,800,567.58
  5. Step 5: Solve for x
    x = 317,800,567.58/20,003.22
  6. Step 6: Final answer
    x = 15,887.47

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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.