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Finding the Fourth Proportional to 25,452.97, 35,123.49 and 15,375.45

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Solution

The fourth proportional to 25,452.97, 35,123.49 and 15,375.45 is: 21,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,452.97 : 35,123.49 = 15,375.45 : x
  2. Step 2: Convert to fraction form
    25,452.97/35,123.49 = 15,375.45/x
  3. Step 3: Cross multiply
    25,452.97x = 35,123.49 × 15,375.45
  4. Step 4: Simplify right side
    25,452.97x = 540,039,464.32
  5. Step 5: Solve for x
    x = 540,039,464.32/25,452.97
  6. Step 6: Final answer
    x = 21,217.15

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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.