Home / 39,796.68-54,914.85-21,890.01

Finding the Fourth Proportional to 39,796.68, 54,914.85 and 21,890.01

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Solution

The fourth proportional to 39,796.68, 54,914.85 and 21,890.01 is: 30,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,796.68 : 54,914.85 = 21,890.01 : x
  2. Step 2: Convert to fraction form
    39,796.68/54,914.85 = 21,890.01/x
  3. Step 3: Cross multiply
    39,796.68x = 54,914.85 × 21,890.01
  4. Step 4: Simplify right side
    39,796.68x = 1,202,086,615.65
  5. Step 5: Solve for x
    x = 1,202,086,615.65/39,796.68
  6. Step 6: Final answer
    x = 30,205.70

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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.