Home / 20,747.56-28,630.92-11,795.44

Finding the Fourth Proportional to 20,747.56, 28,630.92 and 11,795.44

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Solution

The fourth proportional to 20,747.56, 28,630.92 and 11,795.44 is: 16,277.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.56 : 28,630.92 = 11,795.44 : x
  2. Step 2: Convert to fraction form
    20,747.56/28,630.92 = 11,795.44/x
  3. Step 3: Cross multiply
    20,747.56x = 28,630.92 × 11,795.44
  4. Step 4: Simplify right side
    20,747.56x = 337,714,299.00
  5. Step 5: Solve for x
    x = 337,714,299.00/20,747.56
  6. Step 6: Final answer
    x = 16,277.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.