Home / 25,270.90-34,874.04-13,940.80

Finding the Fourth Proportional to 25,270.90, 34,874.04 and 13,940.80

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Solution

The fourth proportional to 25,270.90, 34,874.04 and 13,940.80 is: 19,238.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,270.90 : 34,874.04 = 13,940.80 : x
  2. Step 2: Convert to fraction form
    25,270.90/34,874.04 = 13,940.80/x
  3. Step 3: Cross multiply
    25,270.90x = 34,874.04 × 13,940.80
  4. Step 4: Simplify right side
    25,270.90x = 486,172,016.83
  5. Step 5: Solve for x
    x = 486,172,016.83/25,270.90
  6. Step 6: Final answer
    x = 19,238.41

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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.