Home / 19,193.30-28,784.48-12,162.71

Finding the Fourth Proportional to 19,193.30, 28,784.48 and 12,162.71

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Solution

The fourth proportional to 19,193.30, 28,784.48 and 12,162.71 is: 18,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,193.30 : 28,784.48 = 12,162.71 : x
  2. Step 2: Convert to fraction form
    19,193.30/28,784.48 = 12,162.71/x
  3. Step 3: Cross multiply
    19,193.30x = 28,784.48 × 12,162.71
  4. Step 4: Simplify right side
    19,193.30x = 350,097,169.23
  5. Step 5: Solve for x
    x = 350,097,169.23/19,193.30
  6. Step 6: Final answer
    x = 18,240.59

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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.