Home / 20,011.63-27,615.78-11,059.29

Finding the Fourth Proportional to 20,011.63, 27,615.78 and 11,059.29

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Solution

The fourth proportional to 20,011.63, 27,615.78 and 11,059.29 is: 15,261.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.63 : 27,615.78 = 11,059.29 : x
  2. Step 2: Convert to fraction form
    20,011.63/27,615.78 = 11,059.29/x
  3. Step 3: Cross multiply
    20,011.63x = 27,615.78 × 11,059.29
  4. Step 4: Simplify right side
    20,011.63x = 305,410,919.60
  5. Step 5: Solve for x
    x = 305,410,919.60/20,011.63
  6. Step 6: Final answer
    x = 15,261.67

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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.