Home / 20,219.09-27,903.20-11,266.60

Finding the Fourth Proportional to 20,219.09, 27,903.20 and 11,266.60

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Solution

The fourth proportional to 20,219.09, 27,903.20 and 11,266.60 is: 15,548.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.09 : 27,903.20 = 11,266.60 : x
  2. Step 2: Convert to fraction form
    20,219.09/27,903.20 = 11,266.60/x
  3. Step 3: Cross multiply
    20,219.09x = 27,903.20 × 11,266.60
  4. Step 4: Simplify right side
    20,219.09x = 314,373,997.27
  5. Step 5: Solve for x
    x = 314,373,997.27/20,219.09
  6. Step 6: Final answer
    x = 15,548.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.