Home / 20,848.82-28,771.47-11,896.49

Finding the Fourth Proportional to 20,848.82, 28,771.47 and 11,896.49

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Solution

The fourth proportional to 20,848.82, 28,771.47 and 11,896.49 is: 16,417.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.82 : 28,771.47 = 11,896.49 : x
  2. Step 2: Convert to fraction form
    20,848.82/28,771.47 = 11,896.49/x
  3. Step 3: Cross multiply
    20,848.82x = 28,771.47 × 11,896.49
  4. Step 4: Simplify right side
    20,848.82x = 342,279,577.07
  5. Step 5: Solve for x
    x = 342,279,577.07/20,848.82
  6. Step 6: Final answer
    x = 16,417.22

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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.