Home / 18,811.07-28,216.76-15,296.99

Finding the Fourth Proportional to 18,811.07, 28,216.76 and 15,296.99

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Solution

The fourth proportional to 18,811.07, 28,216.76 and 15,296.99 is: 22,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.07 : 28,216.76 = 15,296.99 : x
  2. Step 2: Convert to fraction form
    18,811.07/28,216.76 = 15,296.99/x
  3. Step 3: Cross multiply
    18,811.07x = 28,216.76 × 15,296.99
  4. Step 4: Simplify right side
    18,811.07x = 431,631,277.98
  5. Step 5: Solve for x
    x = 431,631,277.98/18,811.07
  6. Step 6: Final answer
    x = 22,945.60

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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.