Home / 38,451.06-53,072.13-21,693.78

Finding the Fourth Proportional to 38,451.06, 53,072.13 and 21,693.78

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Solution

The fourth proportional to 38,451.06, 53,072.13 and 21,693.78 is: 29,942.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,451.06 : 53,072.13 = 21,693.78 : x
  2. Step 2: Convert to fraction form
    38,451.06/53,072.13 = 21,693.78/x
  3. Step 3: Cross multiply
    38,451.06x = 53,072.13 × 21,693.78
  4. Step 4: Simplify right side
    38,451.06x = 1,151,335,112.35
  5. Step 5: Solve for x
    x = 1,151,335,112.35/38,451.06
  6. Step 6: Final answer
    x = 29,942.87

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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.