Home / 13,342.05-20,015.94-3,982.81

Finding the Fourth Proportional to 13,342.05, 20,015.94 and 3,982.81

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Solution

The fourth proportional to 13,342.05, 20,015.94 and 3,982.81 is: 5,975.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.05 : 20,015.94 = 3,982.81 : x
  2. Step 2: Convert to fraction form
    13,342.05/20,015.94 = 3,982.81/x
  3. Step 3: Cross multiply
    13,342.05x = 20,015.94 × 3,982.81
  4. Step 4: Simplify right side
    13,342.05x = 79,719,685.99
  5. Step 5: Solve for x
    x = 79,719,685.99/13,342.05
  6. Step 6: Final answer
    x = 5,975.07

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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.