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Finding the Fourth Proportional to 37,121, 51,227 and 20,354

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Solution

The fourth proportional to 37,121, 51,227 and 20,354 is: 28,088.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,121 : 51,227 = 20,354 : x
  2. Step 2: Convert to fraction form
    37,121/51,227 = 20,354/x
  3. Step 3: Cross multiply
    37,121x = 51,227 × 20,354
  4. Step 4: Simplify right side
    37,121x = 1,042,674,358
  5. Step 5: Solve for x
    x = 1,042,674,358/37,121
  6. Step 6: Final answer
    x = 28,088.53

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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.