Home / 28,678.74-43,020.85-11,149.94

Finding the Fourth Proportional to 28,678.74, 43,020.85 and 11,149.94

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Solution

The fourth proportional to 28,678.74, 43,020.85 and 11,149.94 is: 16,725.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.74 : 43,020.85 = 11,149.94 : x
  2. Step 2: Convert to fraction form
    28,678.74/43,020.85 = 11,149.94/x
  3. Step 3: Cross multiply
    28,678.74x = 43,020.85 × 11,149.94
  4. Step 4: Simplify right side
    28,678.74x = 479,679,723.48
  5. Step 5: Solve for x
    x = 479,679,723.48/28,678.74
  6. Step 6: Final answer
    x = 16,725.97

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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.