Home / 19,321.32-28,961.94-10,983.39

Finding the Fourth Proportional to 19,321.32, 28,961.94 and 10,983.39

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Solution

The fourth proportional to 19,321.32, 28,961.94 and 10,983.39 is: 16,463.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.32 : 28,961.94 = 10,983.39 : x
  2. Step 2: Convert to fraction form
    19,321.32/28,961.94 = 10,983.39/x
  3. Step 3: Cross multiply
    19,321.32x = 28,961.94 × 10,983.39
  4. Step 4: Simplify right side
    19,321.32x = 318,100,282.18
  5. Step 5: Solve for x
    x = 318,100,282.18/19,321.32
  6. Step 6: Final answer
    x = 16,463.69

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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.