Home / 20,564.35-30,853.73-8,881.15

Finding the Fourth Proportional to 20,564.35, 30,853.73 and 8,881.15

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Solution

The fourth proportional to 20,564.35, 30,853.73 and 8,881.15 is: 13,324.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564.35 : 30,853.73 = 8,881.15 : x
  2. Step 2: Convert to fraction form
    20,564.35/30,853.73 = 8,881.15/x
  3. Step 3: Cross multiply
    20,564.35x = 30,853.73 × 8,881.15
  4. Step 4: Simplify right side
    20,564.35x = 274,016,559.78
  5. Step 5: Solve for x
    x = 274,016,559.78/20,564.35
  6. Step 6: Final answer
    x = 13,324.83

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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.