Home / 20,017.78-27,622.11-11,064.04

Finding the Fourth Proportional to 20,017.78, 27,622.11 and 11,064.04

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Solution

The fourth proportional to 20,017.78, 27,622.11 and 11,064.04 is: 15,267.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.78 : 27,622.11 = 11,064.04 : x
  2. Step 2: Convert to fraction form
    20,017.78/27,622.11 = 11,064.04/x
  3. Step 3: Cross multiply
    20,017.78x = 27,622.11 × 11,064.04
  4. Step 4: Simplify right side
    20,017.78x = 305,612,257.73
  5. Step 5: Solve for x
    x = 305,612,257.73/20,017.78
  6. Step 6: Final answer
    x = 15,267.04

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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.