Home / 27,405.50-41,121.29-18,984.97

Finding the Fourth Proportional to 27,405.50, 41,121.29 and 18,984.97

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Solution

The fourth proportional to 27,405.50, 41,121.29 and 18,984.97 is: 28,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,405.50 : 41,121.29 = 18,984.97 : x
  2. Step 2: Convert to fraction form
    27,405.50/41,121.29 = 18,984.97/x
  3. Step 3: Cross multiply
    27,405.50x = 41,121.29 × 18,984.97
  4. Step 4: Simplify right side
    27,405.50x = 780,686,555.88
  5. Step 5: Solve for x
    x = 780,686,555.88/27,405.50
  6. Step 6: Final answer
    x = 28,486.50

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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.