Home / 39,919.11-55,085.85-22,911.38

Finding the Fourth Proportional to 39,919.11, 55,085.85 and 22,911.38

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Solution

The fourth proportional to 39,919.11, 55,085.85 and 22,911.38 is: 31,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,919.11 : 55,085.85 = 22,911.38 : x
  2. Step 2: Convert to fraction form
    39,919.11/55,085.85 = 22,911.38/x
  3. Step 3: Cross multiply
    39,919.11x = 55,085.85 × 22,911.38
  4. Step 4: Simplify right side
    39,919.11x = 1,262,092,451.99
  5. Step 5: Solve for x
    x = 1,262,092,451.99/39,919.11
  6. Step 6: Final answer
    x = 31,616.25

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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.