Home / 26,040.66-39,020.10-20,131.98

Finding the Fourth Proportional to 26,040.66, 39,020.10 and 20,131.98

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Solution

The fourth proportional to 26,040.66, 39,020.10 and 20,131.98 is: 30,166.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,040.66 : 39,020.10 = 20,131.98 : x
  2. Step 2: Convert to fraction form
    26,040.66/39,020.10 = 20,131.98/x
  3. Step 3: Cross multiply
    26,040.66x = 39,020.10 × 20,131.98
  4. Step 4: Simplify right side
    26,040.66x = 785,551,872.80
  5. Step 5: Solve for x
    x = 785,551,872.80/26,040.66
  6. Step 6: Final answer
    x = 30,166.36

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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.