Home / 26,921.86-40,389.30-8,453.86

Finding the Fourth Proportional to 26,921.86, 40,389.30 and 8,453.86

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Solution

The fourth proportional to 26,921.86, 40,389.30 and 8,453.86 is: 12,682.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,921.86 : 40,389.30 = 8,453.86 : x
  2. Step 2: Convert to fraction form
    26,921.86/40,389.30 = 8,453.86/x
  3. Step 3: Cross multiply
    26,921.86x = 40,389.30 × 8,453.86
  4. Step 4: Simplify right side
    26,921.86x = 341,445,487.70
  5. Step 5: Solve for x
    x = 341,445,487.70/26,921.86
  6. Step 6: Final answer
    x = 12,682.83

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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.