Home / 39,986.45-55,181.75-22,081.06

Finding the Fourth Proportional to 39,986.45, 55,181.75 and 22,081.06

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Solution

The fourth proportional to 39,986.45, 55,181.75 and 22,081.06 is: 30,472.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.45 : 55,181.75 = 22,081.06 : x
  2. Step 2: Convert to fraction form
    39,986.45/55,181.75 = 22,081.06/x
  3. Step 3: Cross multiply
    39,986.45x = 55,181.75 × 22,081.06
  4. Step 4: Simplify right side
    39,986.45x = 1,218,471,532.66
  5. Step 5: Solve for x
    x = 1,218,471,532.66/39,986.45
  6. Step 6: Final answer
    x = 30,472.11

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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.