Home / 19,919.36-29,897.49-10,065.56

Finding the Fourth Proportional to 19,919.36, 29,897.49 and 10,065.56

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Solution

The fourth proportional to 19,919.36, 29,897.49 and 10,065.56 is: 15,107.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.36 : 29,897.49 = 10,065.56 : x
  2. Step 2: Convert to fraction form
    19,919.36/29,897.49 = 10,065.56/x
  3. Step 3: Cross multiply
    19,919.36x = 29,897.49 × 10,065.56
  4. Step 4: Simplify right side
    19,919.36x = 300,935,035.88
  5. Step 5: Solve for x
    x = 300,935,035.88/19,919.36
  6. Step 6: Final answer
    x = 15,107.66

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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.