Home / 28,164.74-38,855.97-16,221.69

Finding the Fourth Proportional to 28,164.74, 38,855.97 and 16,221.69

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Solution

The fourth proportional to 28,164.74, 38,855.97 and 16,221.69 is: 22,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,164.74 : 38,855.97 = 16,221.69 : x
  2. Step 2: Convert to fraction form
    28,164.74/38,855.97 = 16,221.69/x
  3. Step 3: Cross multiply
    28,164.74x = 38,855.97 × 16,221.69
  4. Step 4: Simplify right side
    28,164.74x = 630,309,499.99
  5. Step 5: Solve for x
    x = 630,309,499.99/28,164.74
  6. Step 6: Final answer
    x = 22,379.39

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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.