Home / 20,883.91-28,819.80-11,452.67

Finding the Fourth Proportional to 20,883.91, 28,819.80 and 11,452.67

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Solution

The fourth proportional to 20,883.91, 28,819.80 and 11,452.67 is: 15,804.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.91 : 28,819.80 = 11,452.67 : x
  2. Step 2: Convert to fraction form
    20,883.91/28,819.80 = 11,452.67/x
  3. Step 3: Cross multiply
    20,883.91x = 28,819.80 × 11,452.67
  4. Step 4: Simplify right side
    20,883.91x = 330,063,658.87
  5. Step 5: Solve for x
    x = 330,063,658.87/20,883.91
  6. Step 6: Final answer
    x = 15,804.69

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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.