Home / 13,346.06-20,020.22-3,985.48

Finding the Fourth Proportional to 13,346.06, 20,020.22 and 3,985.48

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Solution

The fourth proportional to 13,346.06, 20,020.22 and 3,985.48 is: 5,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.06 : 20,020.22 = 3,985.48 : x
  2. Step 2: Convert to fraction form
    13,346.06/20,020.22 = 3,985.48/x
  3. Step 3: Cross multiply
    13,346.06x = 20,020.22 × 3,985.48
  4. Step 4: Simplify right side
    13,346.06x = 79,790,186.41
  5. Step 5: Solve for x
    x = 79,790,186.41/13,346.06
  6. Step 6: Final answer
    x = 5,978.56

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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.