Home / 20,015.04-30,015.36-6,864

Finding the Fourth Proportional to 20,015.04, 30,015.36 and 6,864

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Solution

The fourth proportional to 20,015.04, 30,015.36 and 6,864 is: 10,293.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.04 : 30,015.36 = 6,864 : x
  2. Step 2: Convert to fraction form
    20,015.04/30,015.36 = 6,864/x
  3. Step 3: Cross multiply
    20,015.04x = 30,015.36 × 6,864
  4. Step 4: Simplify right side
    20,015.04x = 206,025,431.04
  5. Step 5: Solve for x
    x = 206,025,431.04/20,015.04
  6. Step 6: Final answer
    x = 10,293.53

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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.