Home / 19,228.73-28,857.69-12,973.91

Finding the Fourth Proportional to 19,228.73, 28,857.69 and 12,973.91

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Solution

The fourth proportional to 19,228.73, 28,857.69 and 12,973.91 is: 19,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.73 : 28,857.69 = 12,973.91 : x
  2. Step 2: Convert to fraction form
    19,228.73/28,857.69 = 12,973.91/x
  3. Step 3: Cross multiply
    19,228.73x = 28,857.69 × 12,973.91
  4. Step 4: Simplify right side
    19,228.73x = 374,396,928.58
  5. Step 5: Solve for x
    x = 374,396,928.58/19,228.73
  6. Step 6: Final answer
    x = 19,470.71

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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.