Home / 26,429.92-39,635.12-18,528.41

Finding the Fourth Proportional to 26,429.92, 39,635.12 and 18,528.41

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Solution

The fourth proportional to 26,429.92, 39,635.12 and 18,528.41 is: 27,785.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,429.92 : 39,635.12 = 18,528.41 : x
  2. Step 2: Convert to fraction form
    26,429.92/39,635.12 = 18,528.41/x
  3. Step 3: Cross multiply
    26,429.92x = 39,635.12 × 18,528.41
  4. Step 4: Simplify right side
    26,429.92x = 734,375,899.17
  5. Step 5: Solve for x
    x = 734,375,899.17/26,429.92
  6. Step 6: Final answer
    x = 27,785.78

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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.