Home / 38,100.82-57,172.83-20,570.26

Finding the Fourth Proportional to 38,100.82, 57,172.83 and 20,570.26

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Solution

The fourth proportional to 38,100.82, 57,172.83 and 20,570.26 is: 30,867.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,100.82 : 57,172.83 = 20,570.26 : x
  2. Step 2: Convert to fraction form
    38,100.82/57,172.83 = 20,570.26/x
  3. Step 3: Cross multiply
    38,100.82x = 57,172.83 × 20,570.26
  4. Step 4: Simplify right side
    38,100.82x = 1,176,059,978.04
  5. Step 5: Solve for x
    x = 1,176,059,978.04/38,100.82
  6. Step 6: Final answer
    x = 30,867.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.