Home / 20,177.80-27,845.28-11,226.16

Finding the Fourth Proportional to 20,177.80, 27,845.28 and 11,226.16

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Solution

The fourth proportional to 20,177.80, 27,845.28 and 11,226.16 is: 15,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.80 : 27,845.28 = 11,226.16 : x
  2. Step 2: Convert to fraction form
    20,177.80/27,845.28 = 11,226.16/x
  3. Step 3: Cross multiply
    20,177.80x = 27,845.28 × 11,226.16
  4. Step 4: Simplify right side
    20,177.80x = 312,595,568.52
  5. Step 5: Solve for x
    x = 312,595,568.52/20,177.80
  6. Step 6: Final answer
    x = 15,492.05

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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.