Home / 20,003.20-27,608.26-11,511.04

Finding the Fourth Proportional to 20,003.20, 27,608.26 and 11,511.04

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Solution

The fourth proportional to 20,003.20, 27,608.26 and 11,511.04 is: 15,887.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.20 : 27,608.26 = 11,511.04 : x
  2. Step 2: Convert to fraction form
    20,003.20/27,608.26 = 11,511.04/x
  3. Step 3: Cross multiply
    20,003.20x = 27,608.26 × 11,511.04
  4. Step 4: Simplify right side
    20,003.20x = 317,799,785.19
  5. Step 5: Solve for x
    x = 317,799,785.19/20,003.20
  6. Step 6: Final answer
    x = 15,887.45

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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.