Home / 38,181.73-52,688.97-21,185.78

Finding the Fourth Proportional to 38,181.73, 52,688.97 and 21,185.78

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Solution

The fourth proportional to 38,181.73, 52,688.97 and 21,185.78 is: 29,235.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,181.73 : 52,688.97 = 21,185.78 : x
  2. Step 2: Convert to fraction form
    38,181.73/52,688.97 = 21,185.78/x
  3. Step 3: Cross multiply
    38,181.73x = 52,688.97 × 21,185.78
  4. Step 4: Simplify right side
    38,181.73x = 1,116,256,926.85
  5. Step 5: Solve for x
    x = 1,116,256,926.85/38,181.73
  6. Step 6: Final answer
    x = 29,235.37

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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.