Home / 28,676.63-43,017.68-11,147.83

Finding the Fourth Proportional to 28,676.63, 43,017.68 and 11,147.83

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Solution

The fourth proportional to 28,676.63, 43,017.68 and 11,147.83 is: 16,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676.63 : 43,017.68 = 11,147.83 : x
  2. Step 2: Convert to fraction form
    28,676.63/43,017.68 = 11,147.83/x
  3. Step 3: Cross multiply
    28,676.63x = 43,017.68 × 11,147.83
  4. Step 4: Simplify right side
    28,676.63x = 479,553,703.96
  5. Step 5: Solve for x
    x = 479,553,703.96/28,676.63
  6. Step 6: Final answer
    x = 16,722.80

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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.