Home / 55,218.40-82,827.60-20,171.73

Finding the Fourth Proportional to 55,218.40, 82,827.60 and 20,171.73

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Solution

The fourth proportional to 55,218.40, 82,827.60 and 20,171.73 is: 30,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,218.40 : 82,827.60 = 20,171.73 : x
  2. Step 2: Convert to fraction form
    55,218.40/82,827.60 = 20,171.73/x
  3. Step 3: Cross multiply
    55,218.40x = 82,827.60 × 20,171.73
  4. Step 4: Simplify right side
    55,218.40x = 1,670,775,983.75
  5. Step 5: Solve for x
    x = 1,670,775,983.75/55,218.40
  6. Step 6: Final answer
    x = 30,257.60

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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.