Home / 25,739.88-38,621.88-9,112.56

Finding the Fourth Proportional to 25,739.88, 38,621.88 and 9,112.56

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Solution

The fourth proportional to 25,739.88, 38,621.88 and 9,112.56 is: 13,673.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,739.88 : 38,621.88 = 9,112.56 : x
  2. Step 2: Convert to fraction form
    25,739.88/38,621.88 = 9,112.56/x
  3. Step 3: Cross multiply
    25,739.88x = 38,621.88 × 9,112.56
  4. Step 4: Simplify right side
    25,739.88x = 351,944,198.81
  5. Step 5: Solve for x
    x = 351,944,198.81/25,739.88
  6. Step 6: Final answer
    x = 13,673.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.