Home / 21,040.43-29,035.94-12,546.36

Finding the Fourth Proportional to 21,040.43, 29,035.94 and 12,546.36

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Solution

The fourth proportional to 21,040.43, 29,035.94 and 12,546.36 is: 17,314.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.43 : 29,035.94 = 12,546.36 : x
  2. Step 2: Convert to fraction form
    21,040.43/29,035.94 = 12,546.36/x
  3. Step 3: Cross multiply
    21,040.43x = 29,035.94 × 12,546.36
  4. Step 4: Simplify right side
    21,040.43x = 364,295,293.45
  5. Step 5: Solve for x
    x = 364,295,293.45/21,040.43
  6. Step 6: Final answer
    x = 17,314.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.