Home / 37,900.38-52,301.80-20,906.20

Finding the Fourth Proportional to 37,900.38, 52,301.80 and 20,906.20

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Solution

The fourth proportional to 37,900.38, 52,301.80 and 20,906.20 is: 28,850.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,900.38 : 52,301.80 = 20,906.20 : x
  2. Step 2: Convert to fraction form
    37,900.38/52,301.80 = 20,906.20/x
  3. Step 3: Cross multiply
    37,900.38x = 52,301.80 × 20,906.20
  4. Step 4: Simplify right side
    37,900.38x = 1,093,431,891.16
  5. Step 5: Solve for x
    x = 1,093,431,891.16/37,900.38
  6. Step 6: Final answer
    x = 28,850.16

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Double scale
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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.