Home / 13,927.56-20,891.07-3,539.31

Finding the Fourth Proportional to 13,927.56, 20,891.07 and 3,539.31

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Solution

The fourth proportional to 13,927.56, 20,891.07 and 3,539.31 is: 5,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.56 : 20,891.07 = 3,539.31 : x
  2. Step 2: Convert to fraction form
    13,927.56/20,891.07 = 3,539.31/x
  3. Step 3: Cross multiply
    13,927.56x = 20,891.07 × 3,539.31
  4. Step 4: Simplify right side
    13,927.56x = 73,939,972.96
  5. Step 5: Solve for x
    x = 73,939,972.96/13,927.56
  6. Step 6: Final answer
    x = 5,308.90

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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.