Home / 26,379.40-39,492.24-13,869.76

Finding the Fourth Proportional to 26,379.40, 39,492.24 and 13,869.76

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Solution

The fourth proportional to 26,379.40, 39,492.24 and 13,869.76 is: 20,764.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,379.40 : 39,492.24 = 13,869.76 : x
  2. Step 2: Convert to fraction form
    26,379.40/39,492.24 = 13,869.76/x
  3. Step 3: Cross multiply
    26,379.40x = 39,492.24 × 13,869.76
  4. Step 4: Simplify right side
    26,379.40x = 547,747,890.66
  5. Step 5: Solve for x
    x = 547,747,890.66/26,379.40
  6. Step 6: Final answer
    x = 20,764.23

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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.