Home / 25,352.87-34,987.68-13,868.33

Finding the Fourth Proportional to 25,352.87, 34,987.68 and 13,868.33

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Solution

The fourth proportional to 25,352.87, 34,987.68 and 13,868.33 is: 19,138.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,352.87 : 34,987.68 = 13,868.33 : x
  2. Step 2: Convert to fraction form
    25,352.87/34,987.68 = 13,868.33/x
  3. Step 3: Cross multiply
    25,352.87x = 34,987.68 × 13,868.33
  4. Step 4: Simplify right side
    25,352.87x = 485,220,517.24
  5. Step 5: Solve for x
    x = 485,220,517.24/25,352.87
  6. Step 6: Final answer
    x = 19,138.69

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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.