Home / 39,845.06-54,984.14-21,936.62

Finding the Fourth Proportional to 39,845.06, 54,984.14 and 21,936.62

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Solution

The fourth proportional to 39,845.06, 54,984.14 and 21,936.62 is: 30,271.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,845.06 : 54,984.14 = 21,936.62 : x
  2. Step 2: Convert to fraction form
    39,845.06/54,984.14 = 21,936.62/x
  3. Step 3: Cross multiply
    39,845.06x = 54,984.14 × 21,936.62
  4. Step 4: Simplify right side
    39,845.06x = 1,206,166,185.21
  5. Step 5: Solve for x
    x = 1,206,166,185.21/39,845.06
  6. Step 6: Final answer
    x = 30,271.41

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1.5x scale

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.