Home / 20,196.67-30,280.96-8,945.90

Finding the Fourth Proportional to 20,196.67, 30,280.96 and 8,945.90

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Solution

The fourth proportional to 20,196.67, 30,280.96 and 8,945.90 is: 13,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.67 : 30,280.96 = 8,945.90 : x
  2. Step 2: Convert to fraction form
    20,196.67/30,280.96 = 8,945.90/x
  3. Step 3: Cross multiply
    20,196.67x = 30,280.96 × 8,945.90
  4. Step 4: Simplify right side
    20,196.67x = 270,890,533.40
  5. Step 5: Solve for x
    x = 270,890,533.40/20,196.67
  6. Step 6: Final answer
    x = 13,412.63

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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.