Home / 25,936.40-38,910.76-8,406.24

Finding the Fourth Proportional to 25,936.40, 38,910.76 and 8,406.24

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Solution

The fourth proportional to 25,936.40, 38,910.76 and 8,406.24 is: 12,611.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,936.40 : 38,910.76 = 8,406.24 : x
  2. Step 2: Convert to fraction form
    25,936.40/38,910.76 = 8,406.24/x
  3. Step 3: Cross multiply
    25,936.40x = 38,910.76 × 8,406.24
  4. Step 4: Simplify right side
    25,936.40x = 327,093,187.14
  5. Step 5: Solve for x
    x = 327,093,187.14/25,936.40
  6. Step 6: Final answer
    x = 12,611.36

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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.