Home / 20,841.84-31,268.62-8,370.62

Finding the Fourth Proportional to 20,841.84, 31,268.62 and 8,370.62

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Solution

The fourth proportional to 20,841.84, 31,268.62 and 8,370.62 is: 12,558.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.84 : 31,268.62 = 8,370.62 : x
  2. Step 2: Convert to fraction form
    20,841.84/31,268.62 = 8,370.62/x
  3. Step 3: Cross multiply
    20,841.84x = 31,268.62 × 8,370.62
  4. Step 4: Simplify right side
    20,841.84x = 261,737,824.58
  5. Step 5: Solve for x
    x = 261,737,824.58/20,841.84
  6. Step 6: Final answer
    x = 12,558.29

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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.