Home / 27,968.98-41,947.07-7,978.09

Finding the Fourth Proportional to 27,968.98, 41,947.07 and 7,978.09

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Solution

The fourth proportional to 27,968.98, 41,947.07 and 7,978.09 is: 11,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,968.98 : 41,947.07 = 7,978.09 : x
  2. Step 2: Convert to fraction form
    27,968.98/41,947.07 = 7,978.09/x
  3. Step 3: Cross multiply
    27,968.98x = 41,947.07 × 7,978.09
  4. Step 4: Simplify right side
    27,968.98x = 334,657,512.24
  5. Step 5: Solve for x
    x = 334,657,512.24/27,968.98
  6. Step 6: Final answer
    x = 11,965.31

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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.