Home / 21,546.45-32,297.38-8,215.86

Finding the Fourth Proportional to 21,546.45, 32,297.38 and 8,215.86

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Solution

The fourth proportional to 21,546.45, 32,297.38 and 8,215.86 is: 12,315.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,546.45 : 32,297.38 = 8,215.86 : x
  2. Step 2: Convert to fraction form
    21,546.45/32,297.38 = 8,215.86/x
  3. Step 3: Cross multiply
    21,546.45x = 32,297.38 × 8,215.86
  4. Step 4: Simplify right side
    21,546.45x = 265,350,717.56
  5. Step 5: Solve for x
    x = 265,350,717.56/21,546.45
  6. Step 6: Final answer
    x = 12,315.29

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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.