Home / 19,940.49-29,944.85-13,319.54

Finding the Fourth Proportional to 19,940.49, 29,944.85 and 13,319.54

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Solution

The fourth proportional to 19,940.49, 29,944.85 and 13,319.54 is: 20,002.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.49 : 29,944.85 = 13,319.54 : x
  2. Step 2: Convert to fraction form
    19,940.49/29,944.85 = 13,319.54/x
  3. Step 3: Cross multiply
    19,940.49x = 29,944.85 × 13,319.54
  4. Step 4: Simplify right side
    19,940.49x = 398,851,411.05
  5. Step 5: Solve for x
    x = 398,851,411.05/19,940.49
  6. Step 6: Final answer
    x = 20,002.09

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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.