Home / 25,867.39-38,781.41-13,379.46

Finding the Fourth Proportional to 25,867.39, 38,781.41 and 13,379.46

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Solution

The fourth proportional to 25,867.39, 38,781.41 and 13,379.46 is: 20,059.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,867.39 : 38,781.41 = 13,379.46 : x
  2. Step 2: Convert to fraction form
    25,867.39/38,781.41 = 13,379.46/x
  3. Step 3: Cross multiply
    25,867.39x = 38,781.41 × 13,379.46
  4. Step 4: Simplify right side
    25,867.39x = 518,874,063.03
  5. Step 5: Solve for x
    x = 518,874,063.03/25,867.39
  6. Step 6: Final answer
    x = 20,059.01

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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.