Home / 25,108.97-34,650.28-13,778.65

Finding the Fourth Proportional to 25,108.97, 34,650.28 and 13,778.65

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Solution

The fourth proportional to 25,108.97, 34,650.28 and 13,778.65 is: 19,014.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,108.97 : 34,650.28 = 13,778.65 : x
  2. Step 2: Convert to fraction form
    25,108.97/34,650.28 = 13,778.65/x
  3. Step 3: Cross multiply
    25,108.97x = 34,650.28 × 13,778.65
  4. Step 4: Simplify right side
    25,108.97x = 477,434,167.15
  5. Step 5: Solve for x
    x = 477,434,167.15/25,108.97
  6. Step 6: Final answer
    x = 19,014.49

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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.