Home / 27,968.40-41,865.12-20,907.36

Finding the Fourth Proportional to 27,968.40, 41,865.12 and 20,907.36

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Solution

The fourth proportional to 27,968.40, 41,865.12 and 20,907.36 is: 31,295.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,968.40 : 41,865.12 = 20,907.36 : x
  2. Step 2: Convert to fraction form
    27,968.40/41,865.12 = 20,907.36/x
  3. Step 3: Cross multiply
    27,968.40x = 41,865.12 × 20,907.36
  4. Step 4: Simplify right side
    27,968.40x = 875,289,135.28
  5. Step 5: Solve for x
    x = 875,289,135.28/27,968.40
  6. Step 6: Final answer
    x = 31,295.65

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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.