Home / 25,195.12-34,777.24-15,757.68

Finding the Fourth Proportional to 25,195.12, 34,777.24 and 15,757.68

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Solution

The fourth proportional to 25,195.12, 34,777.24 and 15,757.68 is: 21,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,195.12 : 34,777.24 = 15,757.68 : x
  2. Step 2: Convert to fraction form
    25,195.12/34,777.24 = 15,757.68/x
  3. Step 3: Cross multiply
    25,195.12x = 34,777.24 × 15,757.68
  4. Step 4: Simplify right side
    25,195.12x = 548,008,619.20
  5. Step 5: Solve for x
    x = 548,008,619.20/25,195.12
  6. Step 6: Final answer
    x = 21,750.59

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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.