Home / 18,020.98-27,006.90-11,435.38

Finding the Fourth Proportional to 18,020.98, 27,006.90 and 11,435.38

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Solution

The fourth proportional to 18,020.98, 27,006.90 and 11,435.38 is: 17,137.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,020.98 : 27,006.90 = 11,435.38 : x
  2. Step 2: Convert to fraction form
    18,020.98/27,006.90 = 11,435.38/x
  3. Step 3: Cross multiply
    18,020.98x = 27,006.90 × 11,435.38
  4. Step 4: Simplify right side
    18,020.98x = 308,834,164.12
  5. Step 5: Solve for x
    x = 308,834,164.12/18,020.98
  6. Step 6: Final answer
    x = 17,137.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.