Home / 19,169.60-28,765.20-7,481.30

Finding the Fourth Proportional to 19,169.60, 28,765.20 and 7,481.30

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Solution

The fourth proportional to 19,169.60, 28,765.20 and 7,481.30 is: 11,226.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,169.60 : 28,765.20 = 7,481.30 : x
  2. Step 2: Convert to fraction form
    19,169.60/28,765.20 = 7,481.30/x
  3. Step 3: Cross multiply
    19,169.60x = 28,765.20 × 7,481.30
  4. Step 4: Simplify right side
    19,169.60x = 215,201,090.76
  5. Step 5: Solve for x
    x = 215,201,090.76/19,169.60
  6. Step 6: Final answer
    x = 11,226.16

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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.