Home / 20,178.99-27,844.02-11,226.60

Finding the Fourth Proportional to 20,178.99, 27,844.02 and 11,226.60

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Solution

The fourth proportional to 20,178.99, 27,844.02 and 11,226.60 is: 15,491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.99 : 27,844.02 = 11,226.60 : x
  2. Step 2: Convert to fraction form
    20,178.99/27,844.02 = 11,226.60/x
  3. Step 3: Cross multiply
    20,178.99x = 27,844.02 × 11,226.60
  4. Step 4: Simplify right side
    20,178.99x = 312,593,674.93
  5. Step 5: Solve for x
    x = 312,593,674.93/20,178.99
  6. Step 6: Final answer
    x = 15,491.05

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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.