Home / 28,667.64-43,004.18-11,138.82

Finding the Fourth Proportional to 28,667.64, 43,004.18 and 11,138.82

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Solution

The fourth proportional to 28,667.64, 43,004.18 and 11,138.82 is: 16,709.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,667.64 : 43,004.18 = 11,138.82 : x
  2. Step 2: Convert to fraction form
    28,667.64/43,004.18 = 11,138.82/x
  3. Step 3: Cross multiply
    28,667.64x = 43,004.18 × 11,138.82
  4. Step 4: Simplify right side
    28,667.64x = 479,015,764.57
  5. Step 5: Solve for x
    x = 479,015,764.57/28,667.64
  6. Step 6: Final answer
    x = 16,709.28

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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.