Home / 38,961.45-53,766.68-21,056.45

Finding the Fourth Proportional to 38,961.45, 53,766.68 and 21,056.45

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Solution

The fourth proportional to 38,961.45, 53,766.68 and 21,056.45 is: 29,057.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,961.45 : 53,766.68 = 21,056.45 : x
  2. Step 2: Convert to fraction form
    38,961.45/53,766.68 = 21,056.45/x
  3. Step 3: Cross multiply
    38,961.45x = 53,766.68 × 21,056.45
  4. Step 4: Simplify right side
    38,961.45x = 1,132,135,034.97
  5. Step 5: Solve for x
    x = 1,132,135,034.97/38,961.45
  6. Step 6: Final answer
    x = 29,057.83

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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.