Home / 25,571.58-38,357.29-11,515.15

Finding the Fourth Proportional to 25,571.58, 38,357.29 and 11,515.15

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Solution

The fourth proportional to 25,571.58, 38,357.29 and 11,515.15 is: 17,272.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,571.58 : 38,357.29 = 11,515.15 : x
  2. Step 2: Convert to fraction form
    25,571.58/38,357.29 = 11,515.15/x
  3. Step 3: Cross multiply
    25,571.58x = 38,357.29 × 11,515.15
  4. Step 4: Simplify right side
    25,571.58x = 441,689,923.96
  5. Step 5: Solve for x
    x = 441,689,923.96/25,571.58
  6. Step 6: Final answer
    x = 17,272.69

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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.