Home / 19,724.20-29,537.70-13,114.60

Finding the Fourth Proportional to 19,724.20, 29,537.70 and 13,114.60

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Solution

The fourth proportional to 19,724.20, 29,537.70 and 13,114.60 is: 19,639.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.20 : 29,537.70 = 13,114.60 : x
  2. Step 2: Convert to fraction form
    19,724.20/29,537.70 = 13,114.60/x
  3. Step 3: Cross multiply
    19,724.20x = 29,537.70 × 13,114.60
  4. Step 4: Simplify right side
    19,724.20x = 387,375,120.42
  5. Step 5: Solve for x
    x = 387,375,120.42/19,724.20
  6. Step 6: Final answer
    x = 19,639.59

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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.