Home / 28,948-43,391.68-13,375.84

Finding the Fourth Proportional to 28,948, 43,391.68 and 13,375.84

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Solution

The fourth proportional to 28,948, 43,391.68 and 13,375.84 is: 20,049.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948 : 43,391.68 = 13,375.84 : x
  2. Step 2: Convert to fraction form
    28,948/43,391.68 = 13,375.84/x
  3. Step 3: Cross multiply
    28,948x = 43,391.68 × 13,375.84
  4. Step 4: Simplify right side
    28,948x = 580,400,169.01
  5. Step 5: Solve for x
    x = 580,400,169.01/28,948
  6. Step 6: Final answer
    x = 20,049.75

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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.