Home / 18,812.07-28,218.26-15,297.99

Finding the Fourth Proportional to 18,812.07, 28,218.26 and 15,297.99

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Solution

The fourth proportional to 18,812.07, 28,218.26 and 15,297.99 is: 22,947.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,812.07 : 28,218.26 = 15,297.99 : x
  2. Step 2: Convert to fraction form
    18,812.07/28,218.26 = 15,297.99/x
  3. Step 3: Cross multiply
    18,812.07x = 28,218.26 × 15,297.99
  4. Step 4: Simplify right side
    18,812.07x = 431,682,659.30
  5. Step 5: Solve for x
    x = 431,682,659.30/18,812.07
  6. Step 6: Final answer
    x = 22,947.11

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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.