Home / 19,936.78-29,905.14-6,085.78

Finding the Fourth Proportional to 19,936.78, 29,905.14 and 6,085.78

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Solution

The fourth proportional to 19,936.78, 29,905.14 and 6,085.78 is: 9,128.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.78 : 29,905.14 = 6,085.78 : x
  2. Step 2: Convert to fraction form
    19,936.78/29,905.14 = 6,085.78/x
  3. Step 3: Cross multiply
    19,936.78x = 29,905.14 × 6,085.78
  4. Step 4: Simplify right side
    19,936.78x = 181,996,102.91
  5. Step 5: Solve for x
    x = 181,996,102.91/19,936.78
  6. Step 6: Final answer
    x = 9,128.66

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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.