Home / 20,882.23-28,821.48-16,335.91

Finding the Fourth Proportional to 20,882.23, 28,821.48 and 16,335.91

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Solution

The fourth proportional to 20,882.23, 28,821.48 and 16,335.91 is: 22,546.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882.23 : 28,821.48 = 16,335.91 : x
  2. Step 2: Convert to fraction form
    20,882.23/28,821.48 = 16,335.91/x
  3. Step 3: Cross multiply
    20,882.23x = 28,821.48 × 16,335.91
  4. Step 4: Simplify right side
    20,882.23x = 470,825,103.35
  5. Step 5: Solve for x
    x = 470,825,103.35/20,882.23
  6. Step 6: Final answer
    x = 22,546.69

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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.