Home / 25,943.88-38,921.29-8,412.34

Finding the Fourth Proportional to 25,943.88, 38,921.29 and 8,412.34

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Solution

The fourth proportional to 25,943.88, 38,921.29 and 8,412.34 is: 12,620.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,943.88 : 38,921.29 = 8,412.34 : x
  2. Step 2: Convert to fraction form
    25,943.88/38,921.29 = 8,412.34/x
  3. Step 3: Cross multiply
    25,943.88x = 38,921.29 × 8,412.34
  4. Step 4: Simplify right side
    25,943.88x = 327,419,124.72
  5. Step 5: Solve for x
    x = 327,419,124.72/25,943.88
  6. Step 6: Final answer
    x = 12,620.28

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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.