Home / 20,708.87-28,581.26-11,754.52

Finding the Fourth Proportional to 20,708.87, 28,581.26 and 11,754.52

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Solution

The fourth proportional to 20,708.87, 28,581.26 and 11,754.52 is: 16,222.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.87 : 28,581.26 = 11,754.52 : x
  2. Step 2: Convert to fraction form
    20,708.87/28,581.26 = 11,754.52/x
  3. Step 3: Cross multiply
    20,708.87x = 28,581.26 × 11,754.52
  4. Step 4: Simplify right side
    20,708.87x = 335,958,862.07
  5. Step 5: Solve for x
    x = 335,958,862.07/20,708.87
  6. Step 6: Final answer
    x = 16,222.95

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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.