Home / 20,350.41-28,082.75-11,852.79

Finding the Fourth Proportional to 20,350.41, 28,082.75 and 11,852.79

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Solution

The fourth proportional to 20,350.41, 28,082.75 and 11,852.79 is: 16,356.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,350.41 : 28,082.75 = 11,852.79 : x
  2. Step 2: Convert to fraction form
    20,350.41/28,082.75 = 11,852.79/x
  3. Step 3: Cross multiply
    20,350.41x = 28,082.75 × 11,852.79
  4. Step 4: Simplify right side
    20,350.41x = 332,858,879.11
  5. Step 5: Solve for x
    x = 332,858,879.11/20,350.41
  6. Step 6: Final answer
    x = 16,356.37

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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.