Home / 20,441.09-28,209.52-11,488.56

Finding the Fourth Proportional to 20,441.09, 28,209.52 and 11,488.56

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Solution

The fourth proportional to 20,441.09, 28,209.52 and 11,488.56 is: 15,854.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.09 : 28,209.52 = 11,488.56 : x
  2. Step 2: Convert to fraction form
    20,441.09/28,209.52 = 11,488.56/x
  3. Step 3: Cross multiply
    20,441.09x = 28,209.52 × 11,488.56
  4. Step 4: Simplify right side
    20,441.09x = 324,086,705.65
  5. Step 5: Solve for x
    x = 324,086,705.65/20,441.09
  6. Step 6: Final answer
    x = 15,854.67

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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.