Home / 26,905.28-40,342.55-8,179.79

Finding the Fourth Proportional to 26,905.28, 40,342.55 and 8,179.79

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Solution

The fourth proportional to 26,905.28, 40,342.55 and 8,179.79 is: 12,265.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,905.28 : 40,342.55 = 8,179.79 : x
  2. Step 2: Convert to fraction form
    26,905.28/40,342.55 = 8,179.79/x
  3. Step 3: Cross multiply
    26,905.28x = 40,342.55 × 8,179.79
  4. Step 4: Simplify right side
    26,905.28x = 329,993,344.45
  5. Step 5: Solve for x
    x = 329,993,344.45/26,905.28
  6. Step 6: Final answer
    x = 12,265.01

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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.