Home / 25,634.70-38,438.34-13,149.62

Finding the Fourth Proportional to 25,634.70, 38,438.34 and 13,149.62

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Solution

The fourth proportional to 25,634.70, 38,438.34 and 13,149.62 is: 19,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,634.70 : 38,438.34 = 13,149.62 : x
  2. Step 2: Convert to fraction form
    25,634.70/38,438.34 = 13,149.62/x
  3. Step 3: Cross multiply
    25,634.70x = 38,438.34 × 13,149.62
  4. Step 4: Simplify right side
    25,634.70x = 505,449,564.43
  5. Step 5: Solve for x
    x = 505,449,564.43/25,634.70
  6. Step 6: Final answer
    x = 19,717.40

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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.