Home / 39,919.94-55,088.79-22,016.60

Finding the Fourth Proportional to 39,919.94, 55,088.79 and 22,016.60

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Solution

The fourth proportional to 39,919.94, 55,088.79 and 22,016.60 is: 30,382.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,919.94 : 55,088.79 = 22,016.60 : x
  2. Step 2: Convert to fraction form
    39,919.94/55,088.79 = 22,016.60/x
  3. Step 3: Cross multiply
    39,919.94x = 55,088.79 × 22,016.60
  4. Step 4: Simplify right side
    39,919.94x = 1,212,867,853.91
  5. Step 5: Solve for x
    x = 1,212,867,853.91/39,919.94
  6. Step 6: Final answer
    x = 30,382.51

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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.