Home / 19,418.38-29,120.38-6,935.06

Finding the Fourth Proportional to 19,418.38, 29,120.38 and 6,935.06

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Solution

The fourth proportional to 19,418.38, 29,120.38 and 6,935.06 is: 10,400.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.38 : 29,120.38 = 6,935.06 : x
  2. Step 2: Convert to fraction form
    19,418.38/29,120.38 = 6,935.06/x
  3. Step 3: Cross multiply
    19,418.38x = 29,120.38 × 6,935.06
  4. Step 4: Simplify right side
    19,418.38x = 201,951,637.99
  5. Step 5: Solve for x
    x = 201,951,637.99/19,418.38
  6. Step 6: Final answer
    x = 10,400.03

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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.