Home / 26,129.68-39,198.84-12,982.48

Finding the Fourth Proportional to 26,129.68, 39,198.84 and 12,982.48

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Solution

The fourth proportional to 26,129.68, 39,198.84 and 12,982.48 is: 19,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,129.68 : 39,198.84 = 12,982.48 : x
  2. Step 2: Convert to fraction form
    26,129.68/39,198.84 = 12,982.48/x
  3. Step 3: Cross multiply
    26,129.68x = 39,198.84 × 12,982.48
  4. Step 4: Simplify right side
    26,129.68x = 508,898,156.32
  5. Step 5: Solve for x
    x = 508,898,156.32/26,129.68
  6. Step 6: Final answer
    x = 19,475.87

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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.