Home / 39,993.08-55,189.40-22,087.70

Finding the Fourth Proportional to 39,993.08, 55,189.40 and 22,087.70

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Solution

The fourth proportional to 39,993.08, 55,189.40 and 22,087.70 is: 30,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,993.08 : 55,189.40 = 22,087.70 : x
  2. Step 2: Convert to fraction form
    39,993.08/55,189.40 = 22,087.70/x
  3. Step 3: Cross multiply
    39,993.08x = 55,189.40 × 22,087.70
  4. Step 4: Simplify right side
    39,993.08x = 1,219,006,799.94
  5. Step 5: Solve for x
    x = 1,219,006,799.94/39,993.08
  6. Step 6: Final answer
    x = 30,480.44

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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.