Home / 13,830.22-20,747.76-4,472.29

Finding the Fourth Proportional to 13,830.22, 20,747.76 and 4,472.29

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Solution

The fourth proportional to 13,830.22, 20,747.76 and 4,472.29 is: 6,709.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.22 : 20,747.76 = 4,472.29 : x
  2. Step 2: Convert to fraction form
    13,830.22/20,747.76 = 4,472.29/x
  3. Step 3: Cross multiply
    13,830.22x = 20,747.76 × 4,472.29
  4. Step 4: Simplify right side
    13,830.22x = 92,789,999.57
  5. Step 5: Solve for x
    x = 92,789,999.57/13,830.22
  6. Step 6: Final answer
    x = 6,709.22

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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.