Home / 19,812.09-29,717.91-4,819.29

Finding the Fourth Proportional to 19,812.09, 29,717.91 and 4,819.29

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Solution

The fourth proportional to 19,812.09, 29,717.91 and 4,819.29 is: 7,228.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.09 : 29,717.91 = 4,819.29 : x
  2. Step 2: Convert to fraction form
    19,812.09/29,717.91 = 4,819.29/x
  3. Step 3: Cross multiply
    19,812.09x = 29,717.91 × 4,819.29
  4. Step 4: Simplify right side
    19,812.09x = 143,219,226.48
  5. Step 5: Solve for x
    x = 143,219,226.48/19,812.09
  6. Step 6: Final answer
    x = 7,228.88

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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.