Home / 20,371.82-30,571.28-8,373.81

Finding the Fourth Proportional to 20,371.82, 30,571.28 and 8,373.81

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Solution

The fourth proportional to 20,371.82, 30,571.28 and 8,373.81 is: 12,566.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.82 : 30,571.28 = 8,373.81 : x
  2. Step 2: Convert to fraction form
    20,371.82/30,571.28 = 8,373.81/x
  3. Step 3: Cross multiply
    20,371.82x = 30,571.28 × 8,373.81
  4. Step 4: Simplify right side
    20,371.82x = 255,998,090.18
  5. Step 5: Solve for x
    x = 255,998,090.18/20,371.82
  6. Step 6: Final answer
    x = 12,566.28

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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.