Home / 19,221.26-28,823.24-8,122.24

Finding the Fourth Proportional to 19,221.26, 28,823.24 and 8,122.24

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Solution

The fourth proportional to 19,221.26, 28,823.24 and 8,122.24 is: 12,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221.26 : 28,823.24 = 8,122.24 : x
  2. Step 2: Convert to fraction form
    19,221.26/28,823.24 = 8,122.24/x
  3. Step 3: Cross multiply
    19,221.26x = 28,823.24 × 8,122.24
  4. Step 4: Simplify right side
    19,221.26x = 234,109,221.11
  5. Step 5: Solve for x
    x = 234,109,221.11/19,221.26
  6. Step 6: Final answer
    x = 12,179.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.