Home / 27,515.75-37,971.78-14,940.50

Finding the Fourth Proportional to 27,515.75, 37,971.78 and 14,940.50

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Solution

The fourth proportional to 27,515.75, 37,971.78 and 14,940.50 is: 20,617.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,515.75 : 37,971.78 = 14,940.50 : x
  2. Step 2: Convert to fraction form
    27,515.75/37,971.78 = 14,940.50/x
  3. Step 3: Cross multiply
    27,515.75x = 37,971.78 × 14,940.50
  4. Step 4: Simplify right side
    27,515.75x = 567,317,379.09
  5. Step 5: Solve for x
    x = 567,317,379.09/27,515.75
  6. Step 6: Final answer
    x = 20,617.91

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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.