Home / 39,906.35-55,070.74-22,911.68

Finding the Fourth Proportional to 39,906.35, 55,070.74 and 22,911.68

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Solution

The fourth proportional to 39,906.35, 55,070.74 and 22,911.68 is: 31,618.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,906.35 : 55,070.74 = 22,911.68 : x
  2. Step 2: Convert to fraction form
    39,906.35/55,070.74 = 22,911.68/x
  3. Step 3: Cross multiply
    39,906.35x = 55,070.74 × 22,911.68
  4. Step 4: Simplify right side
    39,906.35x = 1,261,763,057.68
  5. Step 5: Solve for x
    x = 1,261,763,057.68/39,906.35
  6. Step 6: Final answer
    x = 31,618.11

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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.