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Finding the Fourth Proportional to 36,920.53, 50,942.68 and 21,805.53

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Solution

The fourth proportional to 36,920.53, 50,942.68 and 21,805.53 is: 30,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,920.53 : 50,942.68 = 21,805.53 : x
  2. Step 2: Convert to fraction form
    36,920.53/50,942.68 = 21,805.53/x
  3. Step 3: Cross multiply
    36,920.53x = 50,942.68 × 21,805.53
  4. Step 4: Simplify right side
    36,920.53x = 1,110,832,137.02
  5. Step 5: Solve for x
    x = 1,110,832,137.02/36,920.53
  6. Step 6: Final answer
    x = 30,087.11

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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.