Home / 20,699.37-28,571.58-11,752.83

Finding the Fourth Proportional to 20,699.37, 28,571.58 and 11,752.83

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Solution

The fourth proportional to 20,699.37, 28,571.58 and 11,752.83 is: 16,222.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.37 : 28,571.58 = 11,752.83 : x
  2. Step 2: Convert to fraction form
    20,699.37/28,571.58 = 11,752.83/x
  3. Step 3: Cross multiply
    20,699.37x = 28,571.58 × 11,752.83
  4. Step 4: Simplify right side
    20,699.37x = 335,796,922.57
  5. Step 5: Solve for x
    x = 335,796,922.57/20,699.37
  6. Step 6: Final answer
    x = 16,222.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.