Home / 19,956.38-29,935.47-6,448.61

Finding the Fourth Proportional to 19,956.38, 29,935.47 and 6,448.61

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Solution

The fourth proportional to 19,956.38, 29,935.47 and 6,448.61 is: 9,673.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956.38 : 29,935.47 = 6,448.61 : x
  2. Step 2: Convert to fraction form
    19,956.38/29,935.47 = 6,448.61/x
  3. Step 3: Cross multiply
    19,956.38x = 29,935.47 × 6,448.61
  4. Step 4: Simplify right side
    19,956.38x = 193,042,270.22
  5. Step 5: Solve for x
    x = 193,042,270.22/19,956.38
  6. Step 6: Final answer
    x = 9,673.21

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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.