Home / 19,919.05-29,864.73-8,819.68

Finding the Fourth Proportional to 19,919.05, 29,864.73 and 8,819.68

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Solution

The fourth proportional to 19,919.05, 29,864.73 and 8,819.68 is: 13,223.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.05 : 29,864.73 = 8,819.68 : x
  2. Step 2: Convert to fraction form
    19,919.05/29,864.73 = 8,819.68/x
  3. Step 3: Cross multiply
    19,919.05x = 29,864.73 × 8,819.68
  4. Step 4: Simplify right side
    19,919.05x = 263,397,361.89
  5. Step 5: Solve for x
    x = 263,397,361.89/19,919.05
  6. Step 6: Final answer
    x = 13,223.39

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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.