Home / 13,821.77-20,732.65-3,433.52

Finding the Fourth Proportional to 13,821.77, 20,732.65 and 3,433.52

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Solution

The fourth proportional to 13,821.77, 20,732.65 and 3,433.52 is: 5,150.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.77 : 20,732.65 = 3,433.52 : x
  2. Step 2: Convert to fraction form
    13,821.77/20,732.65 = 3,433.52/x
  3. Step 3: Cross multiply
    13,821.77x = 20,732.65 × 3,433.52
  4. Step 4: Simplify right side
    13,821.77x = 71,185,968.43
  5. Step 5: Solve for x
    x = 71,185,968.43/13,821.77
  6. Step 6: Final answer
    x = 5,150.28

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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.