Home / 20,219.44-27,903.13-11,722.20

Finding the Fourth Proportional to 20,219.44, 27,903.13 and 11,722.20

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Solution

The fourth proportional to 20,219.44, 27,903.13 and 11,722.20 is: 16,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.44 : 27,903.13 = 11,722.20 : x
  2. Step 2: Convert to fraction form
    20,219.44/27,903.13 = 11,722.20/x
  3. Step 3: Cross multiply
    20,219.44x = 27,903.13 × 11,722.20
  4. Step 4: Simplify right side
    20,219.44x = 327,086,041.18
  5. Step 5: Solve for x
    x = 327,086,041.18/20,219.44
  6. Step 6: Final answer
    x = 16,176.81

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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.