Home / 13,220.17-19,830.17-3,359.43

Finding the Fourth Proportional to 13,220.17, 19,830.17 and 3,359.43

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Solution

The fourth proportional to 13,220.17, 19,830.17 and 3,359.43 is: 5,039.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.17 : 19,830.17 = 3,359.43 : x
  2. Step 2: Convert to fraction form
    13,220.17/19,830.17 = 3,359.43/x
  3. Step 3: Cross multiply
    13,220.17x = 19,830.17 × 3,359.43
  4. Step 4: Simplify right side
    13,220.17x = 66,618,076.40
  5. Step 5: Solve for x
    x = 66,618,076.40/13,220.17
  6. Step 6: Final answer
    x = 5,039.12

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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.