Home / 20,483.19-28,267.38-11,529.99

Finding the Fourth Proportional to 20,483.19, 28,267.38 and 11,529.99

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Solution

The fourth proportional to 20,483.19, 28,267.38 and 11,529.99 is: 15,911.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.19 : 28,267.38 = 11,529.99 : x
  2. Step 2: Convert to fraction form
    20,483.19/28,267.38 = 11,529.99/x
  3. Step 3: Cross multiply
    20,483.19x = 28,267.38 × 11,529.99
  4. Step 4: Simplify right side
    20,483.19x = 325,922,608.73
  5. Step 5: Solve for x
    x = 325,922,608.73/20,483.19
  6. Step 6: Final answer
    x = 15,911.71

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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.