Home / 28,788.28-43,180.38-17,696.68

Finding the Fourth Proportional to 28,788.28, 43,180.38 and 17,696.68

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Solution

The fourth proportional to 28,788.28, 43,180.38 and 17,696.68 is: 26,543.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.28 : 43,180.38 = 17,696.68 : x
  2. Step 2: Convert to fraction form
    28,788.28/43,180.38 = 17,696.68/x
  3. Step 3: Cross multiply
    28,788.28x = 43,180.38 × 17,696.68
  4. Step 4: Simplify right side
    28,788.28x = 764,149,367.14
  5. Step 5: Solve for x
    x = 764,149,367.14/28,788.28
  6. Step 6: Final answer
    x = 26,543.77

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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.