Home / 25,645.71-35,390.81-15,033.29

Finding the Fourth Proportional to 25,645.71, 35,390.81 and 15,033.29

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Solution

The fourth proportional to 25,645.71, 35,390.81 and 15,033.29 is: 20,745.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,645.71 : 35,390.81 = 15,033.29 : x
  2. Step 2: Convert to fraction form
    25,645.71/35,390.81 = 15,033.29/x
  3. Step 3: Cross multiply
    25,645.71x = 35,390.81 × 15,033.29
  4. Step 4: Simplify right side
    25,645.71x = 532,040,436.13
  5. Step 5: Solve for x
    x = 532,040,436.13/25,645.71
  6. Step 6: Final answer
    x = 20,745.79

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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.