Home / 20,321.39-30,485.00-6,282.64

Finding the Fourth Proportional to 20,321.39, 30,485.00 and 6,282.64

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Solution

The fourth proportional to 20,321.39, 30,485.00 and 6,282.64 is: 9,424.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321.39 : 30,485.00 = 6,282.64 : x
  2. Step 2: Convert to fraction form
    20,321.39/30,485.00 = 6,282.64/x
  3. Step 3: Cross multiply
    20,321.39x = 30,485.00 × 6,282.64
  4. Step 4: Simplify right side
    20,321.39x = 191,526,172.77
  5. Step 5: Solve for x
    x = 191,526,172.77/20,321.39
  6. Step 6: Final answer
    x = 9,424.86

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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.