Home / 20,189.24-30,285.08-8,503.37

Finding the Fourth Proportional to 20,189.24, 30,285.08 and 8,503.37

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Solution

The fourth proportional to 20,189.24, 30,285.08 and 8,503.37 is: 12,755.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.24 : 30,285.08 = 8,503.37 : x
  2. Step 2: Convert to fraction form
    20,189.24/30,285.08 = 8,503.37/x
  3. Step 3: Cross multiply
    20,189.24x = 30,285.08 × 8,503.37
  4. Step 4: Simplify right side
    20,189.24x = 257,525,198.20
  5. Step 5: Solve for x
    x = 257,525,198.20/20,189.24
  6. Step 6: Final answer
    x = 12,755.57

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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.