Home / 38,435.46-57,674.80-20,906.52

Finding the Fourth Proportional to 38,435.46, 57,674.80 and 20,906.52

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Solution

The fourth proportional to 38,435.46, 57,674.80 and 20,906.52 is: 31,371.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,435.46 : 57,674.80 = 20,906.52 : x
  2. Step 2: Convert to fraction form
    38,435.46/57,674.80 = 20,906.52/x
  3. Step 3: Cross multiply
    38,435.46x = 57,674.80 × 20,906.52
  4. Step 4: Simplify right side
    38,435.46x = 1,205,779,359.70
  5. Step 5: Solve for x
    x = 1,205,779,359.70/38,435.46
  6. Step 6: Final answer
    x = 31,371.53

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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.