Home / 20,864-31,298.56-6,272

Finding the Fourth Proportional to 20,864, 31,298.56 and 6,272

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Solution

The fourth proportional to 20,864, 31,298.56 and 6,272 is: 9,408.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864 : 31,298.56 = 6,272 : x
  2. Step 2: Convert to fraction form
    20,864/31,298.56 = 6,272/x
  3. Step 3: Cross multiply
    20,864x = 31,298.56 × 6,272
  4. Step 4: Simplify right side
    20,864x = 196,304,568.32
  5. Step 5: Solve for x
    x = 196,304,568.32/20,864
  6. Step 6: Final answer
    x = 9,408.77

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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.