Home / 26,856.70-40,299.45-11,275.90

Finding the Fourth Proportional to 26,856.70, 40,299.45 and 11,275.90

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Solution

The fourth proportional to 26,856.70, 40,299.45 and 11,275.90 is: 16,919.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,856.70 : 40,299.45 = 11,275.90 : x
  2. Step 2: Convert to fraction form
    26,856.70/40,299.45 = 11,275.90/x
  3. Step 3: Cross multiply
    26,856.70x = 40,299.45 × 11,275.90
  4. Step 4: Simplify right side
    26,856.70x = 454,412,568.26
  5. Step 5: Solve for x
    x = 454,412,568.26/26,856.70
  6. Step 6: Final answer
    x = 16,919.90

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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.