Home / 20,601.25-30,883.55-7,450.70

Finding the Fourth Proportional to 20,601.25, 30,883.55 and 7,450.70

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Solution

The fourth proportional to 20,601.25, 30,883.55 and 7,450.70 is: 11,169.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.25 : 30,883.55 = 7,450.70 : x
  2. Step 2: Convert to fraction form
    20,601.25/30,883.55 = 7,450.70/x
  3. Step 3: Cross multiply
    20,601.25x = 30,883.55 × 7,450.70
  4. Step 4: Simplify right side
    20,601.25x = 230,104,065.99
  5. Step 5: Solve for x
    x = 230,104,065.99/20,601.25
  6. Step 6: Final answer
    x = 11,169.42

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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.