Home / 25,912.75-38,872.76-12,765.23

Finding the Fourth Proportional to 25,912.75, 38,872.76 and 12,765.23

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Solution

The fourth proportional to 25,912.75, 38,872.76 and 12,765.23 is: 19,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,912.75 : 38,872.76 = 12,765.23 : x
  2. Step 2: Convert to fraction form
    25,912.75/38,872.76 = 12,765.23/x
  3. Step 3: Cross multiply
    25,912.75x = 38,872.76 × 12,765.23
  4. Step 4: Simplify right side
    25,912.75x = 496,219,722.13
  5. Step 5: Solve for x
    x = 496,219,722.13/25,912.75
  6. Step 6: Final answer
    x = 19,149.64

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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.