Home / 18,922.72-28,367.44-13,091.04

Finding the Fourth Proportional to 18,922.72, 28,367.44 and 13,091.04

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Solution

The fourth proportional to 18,922.72, 28,367.44 and 13,091.04 is: 19,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.72 : 28,367.44 = 13,091.04 : x
  2. Step 2: Convert to fraction form
    18,922.72/28,367.44 = 13,091.04/x
  3. Step 3: Cross multiply
    18,922.72x = 28,367.44 × 13,091.04
  4. Step 4: Simplify right side
    18,922.72x = 371,359,291.74
  5. Step 5: Solve for x
    x = 371,359,291.74/18,922.72
  6. Step 6: Final answer
    x = 19,625.05

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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.