Home / 13,821.57-20,735.46-5,056.41

Finding the Fourth Proportional to 13,821.57, 20,735.46 and 5,056.41

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Solution

The fourth proportional to 13,821.57, 20,735.46 and 5,056.41 is: 7,585.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.57 : 20,735.46 = 5,056.41 : x
  2. Step 2: Convert to fraction form
    13,821.57/20,735.46 = 5,056.41/x
  3. Step 3: Cross multiply
    13,821.57x = 20,735.46 × 5,056.41
  4. Step 4: Simplify right side
    13,821.57x = 104,846,987.30
  5. Step 5: Solve for x
    x = 104,846,987.30/13,821.57
  6. Step 6: Final answer
    x = 7,585.75

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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.