Home / 39,922.12-55,091.55-22,016.80

Finding the Fourth Proportional to 39,922.12, 55,091.55 and 22,016.80

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Solution

The fourth proportional to 39,922.12, 55,091.55 and 22,016.80 is: 30,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,922.12 : 55,091.55 = 22,016.80 : x
  2. Step 2: Convert to fraction form
    39,922.12/55,091.55 = 22,016.80/x
  3. Step 3: Cross multiply
    39,922.12x = 55,091.55 × 22,016.80
  4. Step 4: Simplify right side
    39,922.12x = 1,212,939,638.04
  5. Step 5: Solve for x
    x = 1,212,939,638.04/39,922.12
  6. Step 6: Final answer
    x = 30,382.65

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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.