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Finding the Fourth Proportional to 27,053.44, 37,381.44 and 20,819.68

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Solution

The fourth proportional to 27,053.44, 37,381.44 and 20,819.68 is: 28,767.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,053.44 : 37,381.44 = 20,819.68 : x
  2. Step 2: Convert to fraction form
    27,053.44/37,381.44 = 20,819.68/x
  3. Step 3: Cross multiply
    27,053.44x = 37,381.44 × 20,819.68
  4. Step 4: Simplify right side
    27,053.44x = 778,269,618.74
  5. Step 5: Solve for x
    x = 778,269,618.74/27,053.44
  6. Step 6: Final answer
    x = 28,767.86

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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.