Home / 19,191.30-28,818.21-11,842.44

Finding the Fourth Proportional to 19,191.30, 28,818.21 and 11,842.44

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Solution

The fourth proportional to 19,191.30, 28,818.21 and 11,842.44 is: 17,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.30 : 28,818.21 = 11,842.44 : x
  2. Step 2: Convert to fraction form
    19,191.30/28,818.21 = 11,842.44/x
  3. Step 3: Cross multiply
    19,191.30x = 28,818.21 × 11,842.44
  4. Step 4: Simplify right side
    19,191.30x = 341,277,922.83
  5. Step 5: Solve for x
    x = 341,277,922.83/19,191.30
  6. Step 6: Final answer
    x = 17,782.95

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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.