Home / 19,122.22-28,650.97-11,711.20

Finding the Fourth Proportional to 19,122.22, 28,650.97 and 11,711.20

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Solution

The fourth proportional to 19,122.22, 28,650.97 and 11,711.20 is: 17,546.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.22 : 28,650.97 = 11,711.20 : x
  2. Step 2: Convert to fraction form
    19,122.22/28,650.97 = 11,711.20/x
  3. Step 3: Cross multiply
    19,122.22x = 28,650.97 × 11,711.20
  4. Step 4: Simplify right side
    19,122.22x = 335,537,239.86
  5. Step 5: Solve for x
    x = 335,537,239.86/19,122.22
  6. Step 6: Final answer
    x = 17,546.98

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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.