Home / 21,650.63-32,486.70-12,157.04

Finding the Fourth Proportional to 21,650.63, 32,486.70 and 12,157.04

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Solution

The fourth proportional to 21,650.63, 32,486.70 and 12,157.04 is: 18,241.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650.63 : 32,486.70 = 12,157.04 : x
  2. Step 2: Convert to fraction form
    21,650.63/32,486.70 = 12,157.04/x
  3. Step 3: Cross multiply
    21,650.63x = 32,486.70 × 12,157.04
  4. Step 4: Simplify right side
    21,650.63x = 394,941,948.93
  5. Step 5: Solve for x
    x = 394,941,948.93/21,650.63
  6. Step 6: Final answer
    x = 18,241.60

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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.