Home / 20,014.92-30,016.80-8,325.54

Finding the Fourth Proportional to 20,014.92, 30,016.80 and 8,325.54

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Solution

The fourth proportional to 20,014.92, 30,016.80 and 8,325.54 is: 12,485.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,014.92 : 30,016.80 = 8,325.54 : x
  2. Step 2: Convert to fraction form
    20,014.92/30,016.80 = 8,325.54/x
  3. Step 3: Cross multiply
    20,014.92x = 30,016.80 × 8,325.54
  4. Step 4: Simplify right side
    20,014.92x = 249,906,069.07
  5. Step 5: Solve for x
    x = 249,906,069.07/20,014.92
  6. Step 6: Final answer
    x = 12,485.99

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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.