Home / 27,015.98-40,491.15-19,120.80

Finding the Fourth Proportional to 27,015.98, 40,491.15 and 19,120.80

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Solution

The fourth proportional to 27,015.98, 40,491.15 and 19,120.80 is: 28,657.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.98 : 40,491.15 = 19,120.80 : x
  2. Step 2: Convert to fraction form
    27,015.98/40,491.15 = 19,120.80/x
  3. Step 3: Cross multiply
    27,015.98x = 40,491.15 × 19,120.80
  4. Step 4: Simplify right side
    27,015.98x = 774,222,882.86
  5. Step 5: Solve for x
    x = 774,222,882.86/27,015.98
  6. Step 6: Final answer
    x = 28,657.96

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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.