Home / 25,286.31-34,895.04-13,955.79

Finding the Fourth Proportional to 25,286.31, 34,895.04 and 13,955.79

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Solution

The fourth proportional to 25,286.31, 34,895.04 and 13,955.79 is: 19,258.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,286.31 : 34,895.04 = 13,955.79 : x
  2. Step 2: Convert to fraction form
    25,286.31/34,895.04 = 13,955.79/x
  3. Step 3: Cross multiply
    25,286.31x = 34,895.04 × 13,955.79
  4. Step 4: Simplify right side
    25,286.31x = 486,987,850.28
  5. Step 5: Solve for x
    x = 486,987,850.28/25,286.31
  6. Step 6: Final answer
    x = 19,258.95

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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.