Home / 13,829.04-20,743.63-3,440.79

Finding the Fourth Proportional to 13,829.04, 20,743.63 and 3,440.79

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Solution

The fourth proportional to 13,829.04, 20,743.63 and 3,440.79 is: 5,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.04 : 20,743.63 = 3,440.79 : x
  2. Step 2: Convert to fraction form
    13,829.04/20,743.63 = 3,440.79/x
  3. Step 3: Cross multiply
    13,829.04x = 20,743.63 × 3,440.79
  4. Step 4: Simplify right side
    13,829.04x = 71,374,474.67
  5. Step 5: Solve for x
    x = 71,374,474.67/13,829.04
  6. Step 6: Final answer
    x = 5,161.20

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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.