Home / 20,151.44-27,808.88-11,077.01

Finding the Fourth Proportional to 20,151.44, 27,808.88 and 11,077.01

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Solution

The fourth proportional to 20,151.44, 27,808.88 and 11,077.01 is: 15,286.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.44 : 27,808.88 = 11,077.01 : x
  2. Step 2: Convert to fraction form
    20,151.44/27,808.88 = 11,077.01/x
  3. Step 3: Cross multiply
    20,151.44x = 27,808.88 × 11,077.01
  4. Step 4: Simplify right side
    20,151.44x = 308,039,047.42
  5. Step 5: Solve for x
    x = 308,039,047.42/20,151.44
  6. Step 6: Final answer
    x = 15,286.21

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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.