Home / 20,012.47-27,616.30-11,059.78

Finding the Fourth Proportional to 20,012.47, 27,616.30 and 11,059.78

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Solution

The fourth proportional to 20,012.47, 27,616.30 and 11,059.78 is: 15,261.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.47 : 27,616.30 = 11,059.78 : x
  2. Step 2: Convert to fraction form
    20,012.47/27,616.30 = 11,059.78/x
  3. Step 3: Cross multiply
    20,012.47x = 27,616.30 × 11,059.78
  4. Step 4: Simplify right side
    20,012.47x = 305,430,202.41
  5. Step 5: Solve for x
    x = 305,430,202.41/20,012.47
  6. Step 6: Final answer
    x = 15,261.99

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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.