Home / 20,842.06-31,268.94-8,370.84

Finding the Fourth Proportional to 20,842.06, 31,268.94 and 8,370.84

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Solution

The fourth proportional to 20,842.06, 31,268.94 and 8,370.84 is: 12,558.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.06 : 31,268.94 = 8,370.84 : x
  2. Step 2: Convert to fraction form
    20,842.06/31,268.94 = 8,370.84/x
  3. Step 3: Cross multiply
    20,842.06x = 31,268.94 × 8,370.84
  4. Step 4: Simplify right side
    20,842.06x = 261,747,293.71
  5. Step 5: Solve for x
    x = 261,747,293.71/20,842.06
  6. Step 6: Final answer
    x = 12,558.61

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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.