Home / 25,451.43-35,143.61-15,902.44

Finding the Fourth Proportional to 25,451.43, 35,143.61 and 15,902.44

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Solution

The fourth proportional to 25,451.43, 35,143.61 and 15,902.44 is: 21,958.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.43 : 35,143.61 = 15,902.44 : x
  2. Step 2: Convert to fraction form
    25,451.43/35,143.61 = 15,902.44/x
  3. Step 3: Cross multiply
    25,451.43x = 35,143.61 × 15,902.44
  4. Step 4: Simplify right side
    25,451.43x = 558,868,982.04
  5. Step 5: Solve for x
    x = 558,868,982.04/25,451.43
  6. Step 6: Final answer
    x = 21,958.26

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1.5x scale

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.