Home / 20,806.19-31,208.05-6,014.78

Finding the Fourth Proportional to 20,806.19, 31,208.05 and 6,014.78

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Solution

The fourth proportional to 20,806.19, 31,208.05 and 6,014.78 is: 9,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806.19 : 31,208.05 = 6,014.78 : x
  2. Step 2: Convert to fraction form
    20,806.19/31,208.05 = 6,014.78/x
  3. Step 3: Cross multiply
    20,806.19x = 31,208.05 × 6,014.78
  4. Step 4: Simplify right side
    20,806.19x = 187,709,554.98
  5. Step 5: Solve for x
    x = 187,709,554.98/20,806.19
  6. Step 6: Final answer
    x = 9,021.81

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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.