Home / 20,072.07-27,697.22-11,117.33

Finding the Fourth Proportional to 20,072.07, 27,697.22 and 11,117.33

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Solution

The fourth proportional to 20,072.07, 27,697.22 and 11,117.33 is: 15,340.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.07 : 27,697.22 = 11,117.33 : x
  2. Step 2: Convert to fraction form
    20,072.07/27,697.22 = 11,117.33/x
  3. Step 3: Cross multiply
    20,072.07x = 27,697.22 × 11,117.33
  4. Step 4: Simplify right side
    20,072.07x = 307,918,977.14
  5. Step 5: Solve for x
    x = 307,918,977.14/20,072.07
  6. Step 6: Final answer
    x = 15,340.67

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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.