Home / 25,138.79-34,691.60-13,960.79

Finding the Fourth Proportional to 25,138.79, 34,691.60 and 13,960.79

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Solution

The fourth proportional to 25,138.79, 34,691.60 and 13,960.79 is: 19,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,138.79 : 34,691.60 = 13,960.79 : x
  2. Step 2: Convert to fraction form
    25,138.79/34,691.60 = 13,960.79/x
  3. Step 3: Cross multiply
    25,138.79x = 34,691.60 × 13,960.79
  4. Step 4: Simplify right side
    25,138.79x = 484,322,142.36
  5. Step 5: Solve for x
    x = 484,322,142.36/25,138.79
  6. Step 6: Final answer
    x = 19,265.93

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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.