Home / 19,997.09-30,013.82-10,645.02

Finding the Fourth Proportional to 19,997.09, 30,013.82 and 10,645.02

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Solution

The fourth proportional to 19,997.09, 30,013.82 and 10,645.02 is: 15,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.09 : 30,013.82 = 10,645.02 : x
  2. Step 2: Convert to fraction form
    19,997.09/30,013.82 = 10,645.02/x
  3. Step 3: Cross multiply
    19,997.09x = 30,013.82 × 10,645.02
  4. Step 4: Simplify right side
    19,997.09x = 319,497,660.95
  5. Step 5: Solve for x
    x = 319,497,660.95/19,997.09
  6. Step 6: Final answer
    x = 15,977.21

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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.