Home / 20,722.86-28,596.48-11,769.18

Finding the Fourth Proportional to 20,722.86, 28,596.48 and 11,769.18

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Solution

The fourth proportional to 20,722.86, 28,596.48 and 11,769.18 is: 16,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.86 : 28,596.48 = 11,769.18 : x
  2. Step 2: Convert to fraction form
    20,722.86/28,596.48 = 11,769.18/x
  3. Step 3: Cross multiply
    20,722.86x = 28,596.48 × 11,769.18
  4. Step 4: Simplify right side
    20,722.86x = 336,557,120.49
  5. Step 5: Solve for x
    x = 336,557,120.49/20,722.86
  6. Step 6: Final answer
    x = 16,240.86

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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.