Home / 19,968.05-27,564.77-12,897.92

Finding the Fourth Proportional to 19,968.05, 27,564.77 and 12,897.92

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Solution

The fourth proportional to 19,968.05, 27,564.77 and 12,897.92 is: 17,804.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968.05 : 27,564.77 = 12,897.92 : x
  2. Step 2: Convert to fraction form
    19,968.05/27,564.77 = 12,897.92/x
  3. Step 3: Cross multiply
    19,968.05x = 27,564.77 × 12,897.92
  4. Step 4: Simplify right side
    19,968.05x = 355,528,198.28
  5. Step 5: Solve for x
    x = 355,528,198.28/19,968.05
  6. Step 6: Final answer
    x = 17,804.85

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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.