Home / 20,445.03-30,641.90-8,744.49

Finding the Fourth Proportional to 20,445.03, 30,641.90 and 8,744.49

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Solution

The fourth proportional to 20,445.03, 30,641.90 and 8,744.49 is: 13,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.03 : 30,641.90 = 8,744.49 : x
  2. Step 2: Convert to fraction form
    20,445.03/30,641.90 = 8,744.49/x
  3. Step 3: Cross multiply
    20,445.03x = 30,641.90 × 8,744.49
  4. Step 4: Simplify right side
    20,445.03x = 267,947,744.41
  5. Step 5: Solve for x
    x = 267,947,744.41/20,445.03
  6. Step 6: Final answer
    x = 13,105.76

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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.