Home / 20,860.01-31,277.38-8,194.60

Finding the Fourth Proportional to 20,860.01, 31,277.38 and 8,194.60

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Solution

The fourth proportional to 20,860.01, 31,277.38 and 8,194.60 is: 12,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.01 : 31,277.38 = 8,194.60 : x
  2. Step 2: Convert to fraction form
    20,860.01/31,277.38 = 8,194.60/x
  3. Step 3: Cross multiply
    20,860.01x = 31,277.38 × 8,194.60
  4. Step 4: Simplify right side
    20,860.01x = 256,305,461.76
  5. Step 5: Solve for x
    x = 256,305,461.76/20,860.01
  6. Step 6: Final answer
    x = 12,286.93

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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.