Home / 25,453.26-35,084.61-20,138.04

Finding the Fourth Proportional to 25,453.26, 35,084.61 and 20,138.04

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Solution

The fourth proportional to 25,453.26, 35,084.61 and 20,138.04 is: 27,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,453.26 : 35,084.61 = 20,138.04 : x
  2. Step 2: Convert to fraction form
    25,453.26/35,084.61 = 20,138.04/x
  3. Step 3: Cross multiply
    25,453.26x = 35,084.61 × 20,138.04
  4. Step 4: Simplify right side
    25,453.26x = 706,535,279.56
  5. Step 5: Solve for x
    x = 706,535,279.56/25,453.26
  6. Step 6: Final answer
    x = 27,758.14

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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.