Home / 20,144.07-27,798.18-11,191.32

Finding the Fourth Proportional to 20,144.07, 27,798.18 and 11,191.32

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Solution

The fourth proportional to 20,144.07, 27,798.18 and 11,191.32 is: 15,443.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.07 : 27,798.18 = 11,191.32 : x
  2. Step 2: Convert to fraction form
    20,144.07/27,798.18 = 11,191.32/x
  3. Step 3: Cross multiply
    20,144.07x = 27,798.18 × 11,191.32
  4. Step 4: Simplify right side
    20,144.07x = 311,098,327.80
  5. Step 5: Solve for x
    x = 311,098,327.80/20,144.07
  6. Step 6: Final answer
    x = 15,443.67

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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.