Home / 25,107.91-34,649.37-13,778.51

Finding the Fourth Proportional to 25,107.91, 34,649.37 and 13,778.51

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Solution

The fourth proportional to 25,107.91, 34,649.37 and 13,778.51 is: 19,014.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,107.91 : 34,649.37 = 13,778.51 : x
  2. Step 2: Convert to fraction form
    25,107.91/34,649.37 = 13,778.51/x
  3. Step 3: Cross multiply
    25,107.91x = 34,649.37 × 13,778.51
  4. Step 4: Simplify right side
    25,107.91x = 477,416,517.79
  5. Step 5: Solve for x
    x = 477,416,517.79/25,107.91
  6. Step 6: Final answer
    x = 19,014.59

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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.