Home / 19,858.54-27,397.93-12,692.65

Finding the Fourth Proportional to 19,858.54, 27,397.93 and 12,692.65

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Solution

The fourth proportional to 19,858.54, 27,397.93 and 12,692.65 is: 17,511.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858.54 : 27,397.93 = 12,692.65 : x
  2. Step 2: Convert to fraction form
    19,858.54/27,397.93 = 12,692.65/x
  3. Step 3: Cross multiply
    19,858.54x = 27,397.93 × 12,692.65
  4. Step 4: Simplify right side
    19,858.54x = 347,752,135.76
  5. Step 5: Solve for x
    x = 347,752,135.76/19,858.54
  6. Step 6: Final answer
    x = 17,511.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.