Home / 25,143.75-34,698.42-13,965.75

Finding the Fourth Proportional to 25,143.75, 34,698.42 and 13,965.75

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Solution

The fourth proportional to 25,143.75, 34,698.42 and 13,965.75 is: 19,272.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,143.75 : 34,698.42 = 13,965.75 : x
  2. Step 2: Convert to fraction form
    25,143.75/34,698.42 = 13,965.75/x
  3. Step 3: Cross multiply
    25,143.75x = 34,698.42 × 13,965.75
  4. Step 4: Simplify right side
    25,143.75x = 484,589,459.12
  5. Step 5: Solve for x
    x = 484,589,459.12/25,143.75
  6. Step 6: Final answer
    x = 19,272.76

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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.