Home / 20,518.41-30,777.61-4,936.03

Finding the Fourth Proportional to 20,518.41, 30,777.61 and 4,936.03

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Solution

The fourth proportional to 20,518.41, 30,777.61 and 4,936.03 is: 7,404.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518.41 : 30,777.61 = 4,936.03 : x
  2. Step 2: Convert to fraction form
    20,518.41/30,777.61 = 4,936.03/x
  3. Step 3: Cross multiply
    20,518.41x = 30,777.61 × 4,936.03
  4. Step 4: Simplify right side
    20,518.41x = 151,919,206.29
  5. Step 5: Solve for x
    x = 151,919,206.29/20,518.41
  6. Step 6: Final answer
    x = 7,404.04

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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.