Home / 38,062.86-57,128.94-20,308.59

Finding the Fourth Proportional to 38,062.86, 57,128.94 and 20,308.59

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Solution

The fourth proportional to 38,062.86, 57,128.94 and 20,308.59 is: 30,481.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,062.86 : 57,128.94 = 20,308.59 : x
  2. Step 2: Convert to fraction form
    38,062.86/57,128.94 = 20,308.59/x
  3. Step 3: Cross multiply
    38,062.86x = 57,128.94 × 20,308.59
  4. Step 4: Simplify right side
    38,062.86x = 1,160,208,219.59
  5. Step 5: Solve for x
    x = 1,160,208,219.59/38,062.86
  6. Step 6: Final answer
    x = 30,481.37

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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.