Home / 20,003.76-27,603.59-11,505.44

Finding the Fourth Proportional to 20,003.76, 27,603.59 and 11,505.44

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Solution

The fourth proportional to 20,003.76, 27,603.59 and 11,505.44 is: 15,876.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.76 : 27,603.59 = 11,505.44 : x
  2. Step 2: Convert to fraction form
    20,003.76/27,603.59 = 11,505.44/x
  3. Step 3: Cross multiply
    20,003.76x = 27,603.59 × 11,505.44
  4. Step 4: Simplify right side
    20,003.76x = 317,591,460.01
  5. Step 5: Solve for x
    x = 317,591,460.01/20,003.76
  6. Step 6: Final answer
    x = 15,876.59

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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.