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Finding the Fourth Proportional to 27,477.92, 37,936.54 and 21,092.29

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Solution

The fourth proportional to 27,477.92, 37,936.54 and 21,092.29 is: 29,120.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,477.92 : 37,936.54 = 21,092.29 : x
  2. Step 2: Convert to fraction form
    27,477.92/37,936.54 = 21,092.29/x
  3. Step 3: Cross multiply
    27,477.92x = 37,936.54 × 21,092.29
  4. Step 4: Simplify right side
    27,477.92x = 800,168,503.28
  5. Step 5: Solve for x
    x = 800,168,503.28/27,477.92
  6. Step 6: Final answer
    x = 29,120.42

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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.