Home / 13,829.78-20,741.76-4,470.68

Finding the Fourth Proportional to 13,829.78, 20,741.76 and 4,470.68

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Solution

The fourth proportional to 13,829.78, 20,741.76 and 4,470.68 is: 6,705.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.78 : 20,741.76 = 4,470.68 : x
  2. Step 2: Convert to fraction form
    13,829.78/20,741.76 = 4,470.68/x
  3. Step 3: Cross multiply
    13,829.78x = 20,741.76 × 4,470.68
  4. Step 4: Simplify right side
    13,829.78x = 92,729,771.60
  5. Step 5: Solve for x
    x = 92,729,771.60/13,829.78
  6. Step 6: Final answer
    x = 6,705.08

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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.