Home / 28,946.62-43,408.86-15,791.95

Finding the Fourth Proportional to 28,946.62, 43,408.86 and 15,791.95

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Solution

The fourth proportional to 28,946.62, 43,408.86 and 15,791.95 is: 23,681.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,946.62 : 43,408.86 = 15,791.95 : x
  2. Step 2: Convert to fraction form
    28,946.62/43,408.86 = 15,791.95/x
  3. Step 3: Cross multiply
    28,946.62x = 43,408.86 × 15,791.95
  4. Step 4: Simplify right side
    28,946.62x = 685,510,546.68
  5. Step 5: Solve for x
    x = 685,510,546.68/28,946.62
  6. Step 6: Final answer
    x = 23,681.89

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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.