Home / 19,983.24-29,974.79-18,765.29

Finding the Fourth Proportional to 19,983.24, 29,974.79 and 18,765.29

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Solution

The fourth proportional to 19,983.24, 29,974.79 and 18,765.29 is: 28,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.24 : 29,974.79 = 18,765.29 : x
  2. Step 2: Convert to fraction form
    19,983.24/29,974.79 = 18,765.29/x
  3. Step 3: Cross multiply
    19,983.24x = 29,974.79 × 18,765.29
  4. Step 4: Simplify right side
    19,983.24x = 562,485,748.89
  5. Step 5: Solve for x
    x = 562,485,748.89/19,983.24
  6. Step 6: Final answer
    x = 28,147.88

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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.