Home / 19,282.92-28,918.68-8,189.52

Finding the Fourth Proportional to 19,282.92, 28,918.68 and 8,189.52

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Solution

The fourth proportional to 19,282.92, 28,918.68 and 8,189.52 is: 12,281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,282.92 : 28,918.68 = 8,189.52 : x
  2. Step 2: Convert to fraction form
    19,282.92/28,918.68 = 8,189.52/x
  3. Step 3: Cross multiply
    19,282.92x = 28,918.68 × 8,189.52
  4. Step 4: Simplify right side
    19,282.92x = 236,830,108.23
  5. Step 5: Solve for x
    x = 236,830,108.23/19,282.92
  6. Step 6: Final answer
    x = 12,281.86

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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.