Home / 20,791.95-31,192.04-6,749.37

Finding the Fourth Proportional to 20,791.95, 31,192.04 and 6,749.37

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Solution

The fourth proportional to 20,791.95, 31,192.04 and 6,749.37 is: 10,125.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,791.95 : 31,192.04 = 6,749.37 : x
  2. Step 2: Convert to fraction form
    20,791.95/31,192.04 = 6,749.37/x
  3. Step 3: Cross multiply
    20,791.95x = 31,192.04 × 6,749.37
  4. Step 4: Simplify right side
    20,791.95x = 210,526,585.27
  5. Step 5: Solve for x
    x = 210,526,585.27/20,791.95
  6. Step 6: Final answer
    x = 10,125.39

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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.