Home / 38,481.82-53,104.41-21,486.35

Finding the Fourth Proportional to 38,481.82, 53,104.41 and 21,486.35

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Solution

The fourth proportional to 38,481.82, 53,104.41 and 21,486.35 is: 29,650.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,481.82 : 53,104.41 = 21,486.35 : x
  2. Step 2: Convert to fraction form
    38,481.82/53,104.41 = 21,486.35/x
  3. Step 3: Cross multiply
    38,481.82x = 53,104.41 × 21,486.35
  4. Step 4: Simplify right side
    38,481.82x = 1,141,020,131.85
  5. Step 5: Solve for x
    x = 1,141,020,131.85/38,481.82
  6. Step 6: Final answer
    x = 29,650.89

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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.