Home / 25,270.75-34,872.91-13,940.29

Finding the Fourth Proportional to 25,270.75, 34,872.91 and 13,940.29

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Solution

The fourth proportional to 25,270.75, 34,872.91 and 13,940.29 is: 19,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,270.75 : 34,872.91 = 13,940.29 : x
  2. Step 2: Convert to fraction form
    25,270.75/34,872.91 = 13,940.29/x
  3. Step 3: Cross multiply
    25,270.75x = 34,872.91 × 13,940.29
  4. Step 4: Simplify right side
    25,270.75x = 486,138,478.54
  5. Step 5: Solve for x
    x = 486,138,478.54/25,270.75
  6. Step 6: Final answer
    x = 19,237.20

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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.