Home / 27,649.85-41,449.86-18,768.20

Finding the Fourth Proportional to 27,649.85, 41,449.86 and 18,768.20

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Solution

The fourth proportional to 27,649.85, 41,449.86 and 18,768.20 is: 28,135.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,649.85 : 41,449.86 = 18,768.20 : x
  2. Step 2: Convert to fraction form
    27,649.85/41,449.86 = 18,768.20/x
  3. Step 3: Cross multiply
    27,649.85x = 41,449.86 × 18,768.20
  4. Step 4: Simplify right side
    27,649.85x = 777,939,055.20
  5. Step 5: Solve for x
    x = 777,939,055.20/27,649.85
  6. Step 6: Final answer
    x = 28,135.39

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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.