Home / 30,273.82-41,755.53-20,845.42

Finding the Fourth Proportional to 30,273.82, 41,755.53 and 20,845.42

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Solution

The fourth proportional to 30,273.82, 41,755.53 and 20,845.42 is: 28,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,273.82 : 41,755.53 = 20,845.42 : x
  2. Step 2: Convert to fraction form
    30,273.82/41,755.53 = 20,845.42/x
  3. Step 3: Cross multiply
    30,273.82x = 41,755.53 × 20,845.42
  4. Step 4: Simplify right side
    30,273.82x = 870,411,560.17
  5. Step 5: Solve for x
    x = 870,411,560.17/30,273.82
  6. Step 6: Final answer
    x = 28,751.30

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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.