Home / 20,944.98-28,904.85-11,514.15

Finding the Fourth Proportional to 20,944.98, 28,904.85 and 11,514.15

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Solution

The fourth proportional to 20,944.98, 28,904.85 and 11,514.15 is: 15,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.98 : 28,904.85 = 11,514.15 : x
  2. Step 2: Convert to fraction form
    20,944.98/28,904.85 = 11,514.15/x
  3. Step 3: Cross multiply
    20,944.98x = 28,904.85 × 11,514.15
  4. Step 4: Simplify right side
    20,944.98x = 332,814,778.63
  5. Step 5: Solve for x
    x = 332,814,778.63/20,944.98
  6. Step 6: Final answer
    x = 15,889.95

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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.