Home / 25,940.57-38,877.80-12,616.58

Finding the Fourth Proportional to 25,940.57, 38,877.80 and 12,616.58

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Solution

The fourth proportional to 25,940.57, 38,877.80 and 12,616.58 is: 18,908.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,940.57 : 38,877.80 = 12,616.58 : x
  2. Step 2: Convert to fraction form
    25,940.57/38,877.80 = 12,616.58/x
  3. Step 3: Cross multiply
    25,940.57x = 38,877.80 × 12,616.58
  4. Step 4: Simplify right side
    25,940.57x = 490,504,616.45
  5. Step 5: Solve for x
    x = 490,504,616.45/25,940.57
  6. Step 6: Final answer
    x = 18,908.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.