Home / 20,610.58-30,887.62-13,579.98

Finding the Fourth Proportional to 20,610.58, 30,887.62 and 13,579.98

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Solution

The fourth proportional to 20,610.58, 30,887.62 and 13,579.98 is: 20,351.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.58 : 30,887.62 = 13,579.98 : x
  2. Step 2: Convert to fraction form
    20,610.58/30,887.62 = 13,579.98/x
  3. Step 3: Cross multiply
    20,610.58x = 30,887.62 × 13,579.98
  4. Step 4: Simplify right side
    20,610.58x = 419,453,261.85
  5. Step 5: Solve for x
    x = 419,453,261.85/20,610.58
  6. Step 6: Final answer
    x = 20,351.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.