Home / 21,630.96-32,380.68-13,845.24

Finding the Fourth Proportional to 21,630.96, 32,380.68 and 13,845.24

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Solution

The fourth proportional to 21,630.96, 32,380.68 and 13,845.24 is: 20,725.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.96 : 32,380.68 = 13,845.24 : x
  2. Step 2: Convert to fraction form
    21,630.96/32,380.68 = 13,845.24/x
  3. Step 3: Cross multiply
    21,630.96x = 32,380.68 × 13,845.24
  4. Step 4: Simplify right side
    21,630.96x = 448,318,285.96
  5. Step 5: Solve for x
    x = 448,318,285.96/21,630.96
  6. Step 6: Final answer
    x = 20,725.77

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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.