Home / 18,803.43-28,204.92-4,571.99

Finding the Fourth Proportional to 18,803.43, 28,204.92 and 4,571.99

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Solution

The fourth proportional to 18,803.43, 28,204.92 and 4,571.99 is: 6,857.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.43 : 28,204.92 = 4,571.99 : x
  2. Step 2: Convert to fraction form
    18,803.43/28,204.92 = 4,571.99/x
  3. Step 3: Cross multiply
    18,803.43x = 28,204.92 × 4,571.99
  4. Step 4: Simplify right side
    18,803.43x = 128,952,590.66
  5. Step 5: Solve for x
    x = 128,952,590.66/18,803.43
  6. Step 6: Final answer
    x = 6,857.93

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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.