Home / 26,983.64-40,479.78-12,191.96

Finding the Fourth Proportional to 26,983.64, 40,479.78 and 12,191.96

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Solution

The fourth proportional to 26,983.64, 40,479.78 and 12,191.96 is: 18,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,983.64 : 40,479.78 = 12,191.96 : x
  2. Step 2: Convert to fraction form
    26,983.64/40,479.78 = 12,191.96/x
  3. Step 3: Cross multiply
    26,983.64x = 40,479.78 × 12,191.96
  4. Step 4: Simplify right side
    26,983.64x = 493,527,858.57
  5. Step 5: Solve for x
    x = 493,527,858.57/26,983.64
  6. Step 6: Final answer
    x = 18,289.89

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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.