Home / 28,857.45-43,292.55-8,869.72

Finding the Fourth Proportional to 28,857.45, 43,292.55 and 8,869.72

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Solution

The fourth proportional to 28,857.45, 43,292.55 and 8,869.72 is: 13,306.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857.45 : 43,292.55 = 8,869.72 : x
  2. Step 2: Convert to fraction form
    28,857.45/43,292.55 = 8,869.72/x
  3. Step 3: Cross multiply
    28,857.45x = 43,292.55 × 8,869.72
  4. Step 4: Simplify right side
    28,857.45x = 383,992,796.59
  5. Step 5: Solve for x
    x = 383,992,796.59/28,857.45
  6. Step 6: Final answer
    x = 13,306.54

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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.