Home / 21,404.96-32,120.40-8,266.40

Finding the Fourth Proportional to 21,404.96, 32,120.40 and 8,266.40

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Solution

The fourth proportional to 21,404.96, 32,120.40 and 8,266.40 is: 12,404.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.96 : 32,120.40 = 8,266.40 : x
  2. Step 2: Convert to fraction form
    21,404.96/32,120.40 = 8,266.40/x
  3. Step 3: Cross multiply
    21,404.96x = 32,120.40 × 8,266.40
  4. Step 4: Simplify right side
    21,404.96x = 265,520,074.56
  5. Step 5: Solve for x
    x = 265,520,074.56/21,404.96
  6. Step 6: Final answer
    x = 12,404.61

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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.