Home / 38,435.81-57,619.44-20,676.02

Finding the Fourth Proportional to 38,435.81, 57,619.44 and 20,676.02

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Solution

The fourth proportional to 38,435.81, 57,619.44 and 20,676.02 is: 30,995.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,435.81 : 57,619.44 = 20,676.02 : x
  2. Step 2: Convert to fraction form
    38,435.81/57,619.44 = 20,676.02/x
  3. Step 3: Cross multiply
    38,435.81x = 57,619.44 × 20,676.02
  4. Step 4: Simplify right side
    38,435.81x = 1,191,340,405.73
  5. Step 5: Solve for x
    x = 1,191,340,405.73/38,435.81
  6. Step 6: Final answer
    x = 30,995.59

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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.