Home / 20,185.46-30,281.42-7,704.98

Finding the Fourth Proportional to 20,185.46, 30,281.42 and 7,704.98

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Solution

The fourth proportional to 20,185.46, 30,281.42 and 7,704.98 is: 11,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.46 : 30,281.42 = 7,704.98 : x
  2. Step 2: Convert to fraction form
    20,185.46/30,281.42 = 7,704.98/x
  3. Step 3: Cross multiply
    20,185.46x = 30,281.42 × 7,704.98
  4. Step 4: Simplify right side
    20,185.46x = 233,317,735.47
  5. Step 5: Solve for x
    x = 233,317,735.47/20,185.46
  6. Step 6: Final answer
    x = 11,558.70

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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.