Home / 28,677.85-43,027.81-13,885.63

Finding the Fourth Proportional to 28,677.85, 43,027.81 and 13,885.63

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Solution

The fourth proportional to 28,677.85, 43,027.81 and 13,885.63 is: 20,833.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.85 : 43,027.81 = 13,885.63 : x
  2. Step 2: Convert to fraction form
    28,677.85/43,027.81 = 13,885.63/x
  3. Step 3: Cross multiply
    28,677.85x = 43,027.81 × 13,885.63
  4. Step 4: Simplify right side
    28,677.85x = 597,468,107.09
  5. Step 5: Solve for x
    x = 597,468,107.09/28,677.85
  6. Step 6: Final answer
    x = 20,833.78

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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.