Home / 36,919.81-55,380.50-13,228.90

Finding the Fourth Proportional to 36,919.81, 55,380.50 and 13,228.90

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Solution

The fourth proportional to 36,919.81, 55,380.50 and 13,228.90 is: 19,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,919.81 : 55,380.50 = 13,228.90 : x
  2. Step 2: Convert to fraction form
    36,919.81/55,380.50 = 13,228.90/x
  3. Step 3: Cross multiply
    36,919.81x = 55,380.50 × 13,228.90
  4. Step 4: Simplify right side
    36,919.81x = 732,623,096.45
  5. Step 5: Solve for x
    x = 732,623,096.45/36,919.81
  6. Step 6: Final answer
    x = 19,843.63

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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.