Home / 39,976.65-55,170.45-22,986.50

Finding the Fourth Proportional to 39,976.65, 55,170.45 and 22,986.50

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Solution

The fourth proportional to 39,976.65, 55,170.45 and 22,986.50 is: 31,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,976.65 : 55,170.45 = 22,986.50 : x
  2. Step 2: Convert to fraction form
    39,976.65/55,170.45 = 22,986.50/x
  3. Step 3: Cross multiply
    39,976.65x = 55,170.45 × 22,986.50
  4. Step 4: Simplify right side
    39,976.65x = 1,268,175,273.07
  5. Step 5: Solve for x
    x = 1,268,175,273.07/39,976.65
  6. Step 6: Final answer
    x = 31,722.90

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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.