Home / 27,819.35-38,369.77-19,321.48

Finding the Fourth Proportional to 27,819.35, 38,369.77 and 19,321.48

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Solution

The fourth proportional to 27,819.35, 38,369.77 and 19,321.48 is: 26,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819.35 : 38,369.77 = 19,321.48 : x
  2. Step 2: Convert to fraction form
    27,819.35/38,369.77 = 19,321.48/x
  3. Step 3: Cross multiply
    27,819.35x = 38,369.77 × 19,321.48
  4. Step 4: Simplify right side
    27,819.35x = 741,360,599.43
  5. Step 5: Solve for x
    x = 741,360,599.43/27,819.35
  6. Step 6: Final answer
    x = 26,649.10

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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.