Home / 19,872.54-27,415.26-13,902.03

Finding the Fourth Proportional to 19,872.54, 27,415.26 and 13,902.03

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Solution

The fourth proportional to 19,872.54, 27,415.26 and 13,902.03 is: 19,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.54 : 27,415.26 = 13,902.03 : x
  2. Step 2: Convert to fraction form
    19,872.54/27,415.26 = 13,902.03/x
  3. Step 3: Cross multiply
    19,872.54x = 27,415.26 × 13,902.03
  4. Step 4: Simplify right side
    19,872.54x = 381,127,766.98
  5. Step 5: Solve for x
    x = 381,127,766.98/19,872.54
  6. Step 6: Final answer
    x = 19,178.61

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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.