Home / 21,650.96-32,410.68-13,865.24

Finding the Fourth Proportional to 21,650.96, 32,410.68 and 13,865.24

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Solution

The fourth proportional to 21,650.96, 32,410.68 and 13,865.24 is: 20,755.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650.96 : 32,410.68 = 13,865.24 : x
  2. Step 2: Convert to fraction form
    21,650.96/32,410.68 = 13,865.24/x
  3. Step 3: Cross multiply
    21,650.96x = 32,410.68 × 13,865.24
  4. Step 4: Simplify right side
    21,650.96x = 449,381,856.76
  5. Step 5: Solve for x
    x = 449,381,856.76/21,650.96
  6. Step 6: Final answer
    x = 20,755.75

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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.