Home / 13,828.49-20,742.85-3,968.08

Finding the Fourth Proportional to 13,828.49, 20,742.85 and 3,968.08

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Solution

The fourth proportional to 13,828.49, 20,742.85 and 3,968.08 is: 5,952.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.49 : 20,742.85 = 3,968.08 : x
  2. Step 2: Convert to fraction form
    13,828.49/20,742.85 = 3,968.08/x
  3. Step 3: Cross multiply
    13,828.49x = 20,742.85 × 3,968.08
  4. Step 4: Simplify right side
    13,828.49x = 82,309,219.01
  5. Step 5: Solve for x
    x = 82,309,219.01/13,828.49
  6. Step 6: Final answer
    x = 5,952.15

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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.