Home / 20,883.67-28,819.14-11,323.37

Finding the Fourth Proportional to 20,883.67, 28,819.14 and 11,323.37

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Solution

The fourth proportional to 20,883.67, 28,819.14 and 11,323.37 is: 15,626.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.67 : 28,819.14 = 11,323.37 : x
  2. Step 2: Convert to fraction form
    20,883.67/28,819.14 = 11,323.37/x
  3. Step 3: Cross multiply
    20,883.67x = 28,819.14 × 11,323.37
  4. Step 4: Simplify right side
    20,883.67x = 326,329,797.53
  5. Step 5: Solve for x
    x = 326,329,797.53/20,883.67
  6. Step 6: Final answer
    x = 15,626.07

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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.