Home / 36,571.20-54,862.80-12,872.64

Finding the Fourth Proportional to 36,571.20, 54,862.80 and 12,872.64

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Solution

The fourth proportional to 36,571.20, 54,862.80 and 12,872.64 is: 19,311.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,571.20 : 54,862.80 = 12,872.64 : x
  2. Step 2: Convert to fraction form
    36,571.20/54,862.80 = 12,872.64/x
  3. Step 3: Cross multiply
    36,571.20x = 54,862.80 × 12,872.64
  4. Step 4: Simplify right side
    36,571.20x = 706,229,073.79
  5. Step 5: Solve for x
    x = 706,229,073.79/36,571.20
  6. Step 6: Final answer
    x = 19,311.07

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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.