Home / 20,879.07-28,793.55-16,644.18

Finding the Fourth Proportional to 20,879.07, 28,793.55 and 16,644.18

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Solution

The fourth proportional to 20,879.07, 28,793.55 and 16,644.18 is: 22,953.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,879.07 : 28,793.55 = 16,644.18 : x
  2. Step 2: Convert to fraction form
    20,879.07/28,793.55 = 16,644.18/x
  3. Step 3: Cross multiply
    20,879.07x = 28,793.55 × 16,644.18
  4. Step 4: Simplify right side
    20,879.07x = 479,245,029.04
  5. Step 5: Solve for x
    x = 479,245,029.04/20,879.07
  6. Step 6: Final answer
    x = 22,953.37

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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.