Home / 13,981.06-20,971.86-3,592.54

Finding the Fourth Proportional to 13,981.06, 20,971.86 and 3,592.54

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Solution

The fourth proportional to 13,981.06, 20,971.86 and 3,592.54 is: 5,388.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.06 : 20,971.86 = 3,592.54 : x
  2. Step 2: Convert to fraction form
    13,981.06/20,971.86 = 3,592.54/x
  3. Step 3: Cross multiply
    13,981.06x = 20,971.86 × 3,592.54
  4. Step 4: Simplify right side
    13,981.06x = 75,342,245.92
  5. Step 5: Solve for x
    x = 75,342,245.92/13,981.06
  6. Step 6: Final answer
    x = 5,388.88

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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.