Home / 20,576.88-30,907.26-13,566.96

Finding the Fourth Proportional to 20,576.88, 30,907.26 and 13,566.96

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Solution

The fourth proportional to 20,576.88, 30,907.26 and 13,566.96 is: 20,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.88 : 30,907.26 = 13,566.96 : x
  2. Step 2: Convert to fraction form
    20,576.88/30,907.26 = 13,566.96/x
  3. Step 3: Cross multiply
    20,576.88x = 30,907.26 × 13,566.96
  4. Step 4: Simplify right side
    20,576.88x = 419,317,560.13
  5. Step 5: Solve for x
    x = 419,317,560.13/20,576.88
  6. Step 6: Final answer
    x = 20,378.09

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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.