Home / 25,611.24-38,408.20-12,455.24

Finding the Fourth Proportional to 25,611.24, 38,408.20 and 12,455.24

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Solution

The fourth proportional to 25,611.24, 38,408.20 and 12,455.24 is: 18,678.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,611.24 : 38,408.20 = 12,455.24 : x
  2. Step 2: Convert to fraction form
    25,611.24/38,408.20 = 12,455.24/x
  3. Step 3: Cross multiply
    25,611.24x = 38,408.20 × 12,455.24
  4. Step 4: Simplify right side
    25,611.24x = 478,383,348.97
  5. Step 5: Solve for x
    x = 478,383,348.97/25,611.24
  6. Step 6: Final answer
    x = 18,678.65

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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.