Home / 19,938.45-29,911.73-6,791.34

Finding the Fourth Proportional to 19,938.45, 29,911.73 and 6,791.34

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Solution

The fourth proportional to 19,938.45, 29,911.73 and 6,791.34 is: 10,188.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.45 : 29,911.73 = 6,791.34 : x
  2. Step 2: Convert to fraction form
    19,938.45/29,911.73 = 6,791.34/x
  3. Step 3: Cross multiply
    19,938.45x = 29,911.73 × 6,791.34
  4. Step 4: Simplify right side
    19,938.45x = 203,140,694.46
  5. Step 5: Solve for x
    x = 203,140,694.46/19,938.45
  6. Step 6: Final answer
    x = 10,188.39

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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.