Home / 25,436.43-35,067.74-21,450.56

Finding the Fourth Proportional to 25,436.43, 35,067.74 and 21,450.56

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Solution

The fourth proportional to 25,436.43, 35,067.74 and 21,450.56 is: 29,572.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,436.43 : 35,067.74 = 21,450.56 : x
  2. Step 2: Convert to fraction form
    25,436.43/35,067.74 = 21,450.56/x
  3. Step 3: Cross multiply
    25,436.43x = 35,067.74 × 21,450.56
  4. Step 4: Simplify right side
    25,436.43x = 752,222,378.34
  5. Step 5: Solve for x
    x = 752,222,378.34/25,436.43
  6. Step 6: Final answer
    x = 29,572.64

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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.