Home / 27,620.44-38,114.85-15,682.21

Finding the Fourth Proportional to 27,620.44, 38,114.85 and 15,682.21

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Solution

The fourth proportional to 27,620.44, 38,114.85 and 15,682.21 is: 21,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.44 : 38,114.85 = 15,682.21 : x
  2. Step 2: Convert to fraction form
    27,620.44/38,114.85 = 15,682.21/x
  3. Step 3: Cross multiply
    27,620.44x = 38,114.85 × 15,682.21
  4. Step 4: Simplify right side
    27,620.44x = 597,725,081.82
  5. Step 5: Solve for x
    x = 597,725,081.82/27,620.44
  6. Step 6: Final answer
    x = 21,640.68

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Double scale
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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.