Home / 25,440.75-38,161.19-7,910.60

Finding the Fourth Proportional to 25,440.75, 38,161.19 and 7,910.60

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Solution

The fourth proportional to 25,440.75, 38,161.19 and 7,910.60 is: 11,865.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,440.75 : 38,161.19 = 7,910.60 : x
  2. Step 2: Convert to fraction form
    25,440.75/38,161.19 = 7,910.60/x
  3. Step 3: Cross multiply
    25,440.75x = 38,161.19 × 7,910.60
  4. Step 4: Simplify right side
    25,440.75x = 301,877,738.58
  5. Step 5: Solve for x
    x = 301,877,738.58/25,440.75
  6. Step 6: Final answer
    x = 11,865.91

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1.5x scale

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.