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Finding the Fourth Proportional to 13,802.97, 20,701.41 and 3,942.03

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Solution

The fourth proportional to 13,802.97, 20,701.41 and 3,942.03 is: 5,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.97 : 20,701.41 = 3,942.03 : x
  2. Step 2: Convert to fraction form
    13,802.97/20,701.41 = 3,942.03/x
  3. Step 3: Cross multiply
    13,802.97x = 20,701.41 × 3,942.03
  4. Step 4: Simplify right side
    13,802.97x = 81,605,579.26
  5. Step 5: Solve for x
    x = 81,605,579.26/13,802.97
  6. Step 6: Final answer
    x = 5,912.18

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1.5x scale

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.