Home / 27,682.72-38,204.21-15,749.90

Finding the Fourth Proportional to 27,682.72, 38,204.21 and 15,749.90

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Solution

The fourth proportional to 27,682.72, 38,204.21 and 15,749.90 is: 21,736.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,682.72 : 38,204.21 = 15,749.90 : x
  2. Step 2: Convert to fraction form
    27,682.72/38,204.21 = 15,749.90/x
  3. Step 3: Cross multiply
    27,682.72x = 38,204.21 × 15,749.90
  4. Step 4: Simplify right side
    27,682.72x = 601,712,408.33
  5. Step 5: Solve for x
    x = 601,712,408.33/27,682.72
  6. Step 6: Final answer
    x = 21,736.03

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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.