Home / 21,580.90-32,375.43-8,432.44

Finding the Fourth Proportional to 21,580.90, 32,375.43 and 8,432.44

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Solution

The fourth proportional to 21,580.90, 32,375.43 and 8,432.44 is: 12,650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580.90 : 32,375.43 = 8,432.44 : x
  2. Step 2: Convert to fraction form
    21,580.90/32,375.43 = 8,432.44/x
  3. Step 3: Cross multiply
    21,580.90x = 32,375.43 × 8,432.44
  4. Step 4: Simplify right side
    21,580.90x = 273,003,790.01
  5. Step 5: Solve for x
    x = 273,003,790.01/21,580.90
  6. Step 6: Final answer
    x = 12,650.25

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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.