Home / 26,619.80-39,898.64-20,024.78

Finding the Fourth Proportional to 26,619.80, 39,898.64 and 20,024.78

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Solution

The fourth proportional to 26,619.80, 39,898.64 and 20,024.78 is: 30,013.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,619.80 : 39,898.64 = 20,024.78 : x
  2. Step 2: Convert to fraction form
    26,619.80/39,898.64 = 20,024.78/x
  3. Step 3: Cross multiply
    26,619.80x = 39,898.64 × 20,024.78
  4. Step 4: Simplify right side
    26,619.80x = 798,961,338.87
  5. Step 5: Solve for x
    x = 798,961,338.87/26,619.80
  6. Step 6: Final answer
    x = 30,013.81

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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.