Home / 13,905.41-20,857.93-3,375.52

Finding the Fourth Proportional to 13,905.41, 20,857.93 and 3,375.52

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Solution

The fourth proportional to 13,905.41, 20,857.93 and 3,375.52 is: 5,063.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.41 : 20,857.93 = 3,375.52 : x
  2. Step 2: Convert to fraction form
    13,905.41/20,857.93 = 3,375.52/x
  3. Step 3: Cross multiply
    13,905.41x = 20,857.93 × 3,375.52
  4. Step 4: Simplify right side
    13,905.41x = 70,406,359.87
  5. Step 5: Solve for x
    x = 70,406,359.87/13,905.41
  6. Step 6: Final answer
    x = 5,063.24

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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.