Home / 23,321.70-34,982.55-13,455.90

Finding the Fourth Proportional to 23,321.70, 34,982.55 and 13,455.90

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Solution

The fourth proportional to 23,321.70, 34,982.55 and 13,455.90 is: 20,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,321.70 : 34,982.55 = 13,455.90 : x
  2. Step 2: Convert to fraction form
    23,321.70/34,982.55 = 13,455.90/x
  3. Step 3: Cross multiply
    23,321.70x = 34,982.55 × 13,455.90
  4. Step 4: Simplify right side
    23,321.70x = 470,721,694.55
  5. Step 5: Solve for x
    x = 470,721,694.55/23,321.70
  6. Step 6: Final answer
    x = 20,183.85

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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.