Home / 39,631.49-54,694.01-21,726.54

Finding the Fourth Proportional to 39,631.49, 54,694.01 and 21,726.54

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Solution

The fourth proportional to 39,631.49, 54,694.01 and 21,726.54 is: 29,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631.49 : 54,694.01 = 21,726.54 : x
  2. Step 2: Convert to fraction form
    39,631.49/54,694.01 = 21,726.54/x
  3. Step 3: Cross multiply
    39,631.49x = 54,694.01 × 21,726.54
  4. Step 4: Simplify right side
    39,631.49x = 1,188,311,487.39
  5. Step 5: Solve for x
    x = 1,188,311,487.39/39,631.49
  6. Step 6: Final answer
    x = 29,984.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.