Home / 22,765.60-34,132.20-8,720.20

Finding the Fourth Proportional to 22,765.60, 34,132.20 and 8,720.20

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Solution

The fourth proportional to 22,765.60, 34,132.20 and 8,720.20 is: 13,074.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,765.60 : 34,132.20 = 8,720.20 : x
  2. Step 2: Convert to fraction form
    22,765.60/34,132.20 = 8,720.20/x
  3. Step 3: Cross multiply
    22,765.60x = 34,132.20 × 8,720.20
  4. Step 4: Simplify right side
    22,765.60x = 297,639,610.44
  5. Step 5: Solve for x
    x = 297,639,610.44/22,765.60
  6. Step 6: Final answer
    x = 13,074.09

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1.5x scale

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.