Home / 20,458.44-28,233.27-11,506.77

Finding the Fourth Proportional to 20,458.44, 28,233.27 and 11,506.77

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Solution

The fourth proportional to 20,458.44, 28,233.27 and 11,506.77 is: 15,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458.44 : 28,233.27 = 11,506.77 : x
  2. Step 2: Convert to fraction form
    20,458.44/28,233.27 = 11,506.77/x
  3. Step 3: Cross multiply
    20,458.44x = 28,233.27 × 11,506.77
  4. Step 4: Simplify right side
    20,458.44x = 324,873,744.24
  5. Step 5: Solve for x
    x = 324,873,744.24/20,458.44
  6. Step 6: Final answer
    x = 15,879.69

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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.