Home / 28,937.20-43,368-15,786.04

Finding the Fourth Proportional to 28,937.20, 43,368 and 15,786.04

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Solution

The fourth proportional to 28,937.20, 43,368 and 15,786.04 is: 23,658.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,937.20 : 43,368 = 15,786.04 : x
  2. Step 2: Convert to fraction form
    28,937.20/43,368 = 15,786.04/x
  3. Step 3: Cross multiply
    28,937.20x = 43,368 × 15,786.04
  4. Step 4: Simplify right side
    28,937.20x = 684,608,982.72
  5. Step 5: Solve for x
    x = 684,608,982.72/28,937.20
  6. Step 6: Final answer
    x = 23,658.44

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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.