Home / 20,927.16-28,879.50-11,496.33

Finding the Fourth Proportional to 20,927.16, 28,879.50 and 11,496.33

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Solution

The fourth proportional to 20,927.16, 28,879.50 and 11,496.33 is: 15,864.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.16 : 28,879.50 = 11,496.33 : x
  2. Step 2: Convert to fraction form
    20,927.16/28,879.50 = 11,496.33/x
  3. Step 3: Cross multiply
    20,927.16x = 28,879.50 × 11,496.33
  4. Step 4: Simplify right side
    20,927.16x = 332,008,262.24
  5. Step 5: Solve for x
    x = 332,008,262.24/20,927.16
  6. Step 6: Final answer
    x = 15,864.95

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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.