Home / 33,879.31-46,776.27-21,151.87

Finding the Fourth Proportional to 33,879.31, 46,776.27 and 21,151.87

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Solution

The fourth proportional to 33,879.31, 46,776.27 and 21,151.87 is: 29,203.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,879.31 : 46,776.27 = 21,151.87 : x
  2. Step 2: Convert to fraction form
    33,879.31/46,776.27 = 21,151.87/x
  3. Step 3: Cross multiply
    33,879.31x = 46,776.27 × 21,151.87
  4. Step 4: Simplify right side
    33,879.31x = 989,405,582.12
  5. Step 5: Solve for x
    x = 989,405,582.12/33,879.31
  6. Step 6: Final answer
    x = 29,203.83

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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.