Home / 13,932.88-20,898.88-3,938.29

Finding the Fourth Proportional to 13,932.88, 20,898.88 and 3,938.29

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Solution

The fourth proportional to 13,932.88, 20,898.88 and 3,938.29 is: 5,907.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.88 : 20,898.88 = 3,938.29 : x
  2. Step 2: Convert to fraction form
    13,932.88/20,898.88 = 3,938.29/x
  3. Step 3: Cross multiply
    13,932.88x = 20,898.88 × 3,938.29
  4. Step 4: Simplify right side
    13,932.88x = 82,305,788.02
  5. Step 5: Solve for x
    x = 82,305,788.02/13,932.88
  6. Step 6: Final answer
    x = 5,907.31

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1.5x scale

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.