Home / 36,122.87-54,173.21-12,743.84

Finding the Fourth Proportional to 36,122.87, 54,173.21 and 12,743.84

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Solution

The fourth proportional to 36,122.87, 54,173.21 and 12,743.84 is: 19,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,122.87 : 54,173.21 = 12,743.84 : x
  2. Step 2: Convert to fraction form
    36,122.87/54,173.21 = 12,743.84/x
  3. Step 3: Cross multiply
    36,122.87x = 54,173.21 × 12,743.84
  4. Step 4: Simplify right side
    36,122.87x = 690,374,385.94
  5. Step 5: Solve for x
    x = 690,374,385.94/36,122.87
  6. Step 6: Final answer
    x = 19,111.84

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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.