Home / 38,531.09-57,835.89-20,760.98

Finding the Fourth Proportional to 38,531.09, 57,835.89 and 20,760.98

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Solution

The fourth proportional to 38,531.09, 57,835.89 and 20,760.98 is: 31,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,531.09 : 57,835.89 = 20,760.98 : x
  2. Step 2: Convert to fraction form
    38,531.09/57,835.89 = 20,760.98/x
  3. Step 3: Cross multiply
    38,531.09x = 57,835.89 × 20,760.98
  4. Step 4: Simplify right side
    38,531.09x = 1,200,729,466.39
  5. Step 5: Solve for x
    x = 1,200,729,466.39/38,531.09
  6. Step 6: Final answer
    x = 31,162.61

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1.5x scale

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.