Home / 13,799.52-20,699.94-3,939.48

Finding the Fourth Proportional to 13,799.52, 20,699.94 and 3,939.48

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Solution

The fourth proportional to 13,799.52, 20,699.94 and 3,939.48 is: 5,909.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.52 : 20,699.94 = 3,939.48 : x
  2. Step 2: Convert to fraction form
    13,799.52/20,699.94 = 3,939.48/x
  3. Step 3: Cross multiply
    13,799.52x = 20,699.94 × 3,939.48
  4. Step 4: Simplify right side
    13,799.52x = 81,546,999.63
  5. Step 5: Solve for x
    x = 81,546,999.63/13,799.52
  6. Step 6: Final answer
    x = 5,909.41

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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.