Home / 20,943.14-31,424.97-9,850.96

Finding the Fourth Proportional to 20,943.14, 31,424.97 and 9,850.96

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Solution

The fourth proportional to 20,943.14, 31,424.97 and 9,850.96 is: 14,781.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.14 : 31,424.97 = 9,850.96 : x
  2. Step 2: Convert to fraction form
    20,943.14/31,424.97 = 9,850.96/x
  3. Step 3: Cross multiply
    20,943.14x = 31,424.97 × 9,850.96
  4. Step 4: Simplify right side
    20,943.14x = 309,565,916.09
  5. Step 5: Solve for x
    x = 309,565,916.09/20,943.14
  6. Step 6: Final answer
    x = 14,781.26

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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.