Home / 27,860.40-41,790.15-11,220.03

Finding the Fourth Proportional to 27,860.40, 41,790.15 and 11,220.03

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Solution

The fourth proportional to 27,860.40, 41,790.15 and 11,220.03 is: 16,829.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.40 : 41,790.15 = 11,220.03 : x
  2. Step 2: Convert to fraction form
    27,860.40/41,790.15 = 11,220.03/x
  3. Step 3: Cross multiply
    27,860.40x = 41,790.15 × 11,220.03
  4. Step 4: Simplify right side
    27,860.40x = 468,886,736.70
  5. Step 5: Solve for x
    x = 468,886,736.70/27,860.40
  6. Step 6: Final answer
    x = 16,829.86

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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.