Home / 25,479.74-35,163.94-15,408.56

Finding the Fourth Proportional to 25,479.74, 35,163.94 and 15,408.56

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Solution

The fourth proportional to 25,479.74, 35,163.94 and 15,408.56 is: 21,264.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,479.74 : 35,163.94 = 15,408.56 : x
  2. Step 2: Convert to fraction form
    25,479.74/35,163.94 = 15,408.56/x
  3. Step 3: Cross multiply
    25,479.74x = 35,163.94 × 15,408.56
  4. Step 4: Simplify right side
    25,479.74x = 541,825,679.33
  5. Step 5: Solve for x
    x = 541,825,679.33/25,479.74
  6. Step 6: Final answer
    x = 21,264.96

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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.