Home / 20,557.45-30,847.92-11,197.09

Finding the Fourth Proportional to 20,557.45, 30,847.92 and 11,197.09

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Solution

The fourth proportional to 20,557.45, 30,847.92 and 11,197.09 is: 16,802.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557.45 : 30,847.92 = 11,197.09 : x
  2. Step 2: Convert to fraction form
    20,557.45/30,847.92 = 11,197.09/x
  3. Step 3: Cross multiply
    20,557.45x = 30,847.92 × 11,197.09
  4. Step 4: Simplify right side
    20,557.45x = 345,406,936.55
  5. Step 5: Solve for x
    x = 345,406,936.55/20,557.45
  6. Step 6: Final answer
    x = 16,802.03

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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.