Home / 38,874.77-53,647.41-21,879.35

Finding the Fourth Proportional to 38,874.77, 53,647.41 and 21,879.35

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Solution

The fourth proportional to 38,874.77, 53,647.41 and 21,879.35 is: 30,193.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,874.77 : 53,647.41 = 21,879.35 : x
  2. Step 2: Convert to fraction form
    38,874.77/53,647.41 = 21,879.35/x
  3. Step 3: Cross multiply
    38,874.77x = 53,647.41 × 21,879.35
  4. Step 4: Simplify right side
    38,874.77x = 1,173,770,350.59
  5. Step 5: Solve for x
    x = 1,173,770,350.59/38,874.77
  6. Step 6: Final answer
    x = 30,193.63

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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.