Home / 39,986.24-55,181.04-22,081.28

Finding the Fourth Proportional to 39,986.24, 55,181.04 and 22,081.28

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Solution

The fourth proportional to 39,986.24, 55,181.04 and 22,081.28 is: 30,472.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.24 : 55,181.04 = 22,081.28 : x
  2. Step 2: Convert to fraction form
    39,986.24/55,181.04 = 22,081.28/x
  3. Step 3: Cross multiply
    39,986.24x = 55,181.04 × 22,081.28
  4. Step 4: Simplify right side
    39,986.24x = 1,218,467,994.93
  5. Step 5: Solve for x
    x = 1,218,467,994.93/39,986.24
  6. Step 6: Final answer
    x = 30,472.18

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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.