Home / 20,803.08-28,706.22-11,849.88

Finding the Fourth Proportional to 20,803.08, 28,706.22 and 11,849.88

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Solution

The fourth proportional to 20,803.08, 28,706.22 and 11,849.88 is: 16,351.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803.08 : 28,706.22 = 11,849.88 : x
  2. Step 2: Convert to fraction form
    20,803.08/28,706.22 = 11,849.88/x
  3. Step 3: Cross multiply
    20,803.08x = 28,706.22 × 11,849.88
  4. Step 4: Simplify right side
    20,803.08x = 340,165,262.25
  5. Step 5: Solve for x
    x = 340,165,262.25/20,803.08
  6. Step 6: Final answer
    x = 16,351.68

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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.