Home / 20,973.39-28,936.76-11,897.26

Finding the Fourth Proportional to 20,973.39, 28,936.76 and 11,897.26

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Solution

The fourth proportional to 20,973.39, 28,936.76 and 11,897.26 is: 16,414.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.39 : 28,936.76 = 11,897.26 : x
  2. Step 2: Convert to fraction form
    20,973.39/28,936.76 = 11,897.26/x
  3. Step 3: Cross multiply
    20,973.39x = 28,936.76 × 11,897.26
  4. Step 4: Simplify right side
    20,973.39x = 344,268,183.26
  5. Step 5: Solve for x
    x = 344,268,183.26/20,973.39
  6. Step 6: Final answer
    x = 16,414.52

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1.5x scale

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.