Home / 20,474.94-30,663.15-13,881.14

Finding the Fourth Proportional to 20,474.94, 30,663.15 and 13,881.14

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Solution

The fourth proportional to 20,474.94, 30,663.15 and 13,881.14 is: 20,788.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.94 : 30,663.15 = 13,881.14 : x
  2. Step 2: Convert to fraction form
    20,474.94/30,663.15 = 13,881.14/x
  3. Step 3: Cross multiply
    20,474.94x = 30,663.15 × 13,881.14
  4. Step 4: Simplify right side
    20,474.94x = 425,639,324.68
  5. Step 5: Solve for x
    x = 425,639,324.68/20,474.94
  6. Step 6: Final answer
    x = 20,788.31

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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.