Home / 39,986.24-55,180.20-22,080.20

Finding the Fourth Proportional to 39,986.24, 55,180.20 and 22,080.20

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Solution

The fourth proportional to 39,986.24, 55,180.20 and 22,080.20 is: 30,470.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.24 : 55,180.20 = 22,080.20 : x
  2. Step 2: Convert to fraction form
    39,986.24/55,180.20 = 22,080.20/x
  3. Step 3: Cross multiply
    39,986.24x = 55,180.20 × 22,080.20
  4. Step 4: Simplify right side
    39,986.24x = 1,218,389,852.04
  5. Step 5: Solve for x
    x = 1,218,389,852.04/39,986.24
  6. Step 6: Final answer
    x = 30,470.23

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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.