Home / 20,682.72-30,999.42-14,408.76

Finding the Fourth Proportional to 20,682.72, 30,999.42 and 14,408.76

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Solution

The fourth proportional to 20,682.72, 30,999.42 and 14,408.76 is: 21,595.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.72 : 30,999.42 = 14,408.76 : x
  2. Step 2: Convert to fraction form
    20,682.72/30,999.42 = 14,408.76/x
  3. Step 3: Cross multiply
    20,682.72x = 30,999.42 × 14,408.76
  4. Step 4: Simplify right side
    20,682.72x = 446,663,202.92
  5. Step 5: Solve for x
    x = 446,663,202.92/20,682.72
  6. Step 6: Final answer
    x = 21,595.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.