Home / 21,448.45-32,176.72-8,125.44

Finding the Fourth Proportional to 21,448.45, 32,176.72 and 8,125.44

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Solution

The fourth proportional to 21,448.45, 32,176.72 and 8,125.44 is: 12,189.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.45 : 32,176.72 = 8,125.44 : x
  2. Step 2: Convert to fraction form
    21,448.45/32,176.72 = 8,125.44/x
  3. Step 3: Cross multiply
    21,448.45x = 32,176.72 × 8,125.44
  4. Step 4: Simplify right side
    21,448.45x = 261,449,927.32
  5. Step 5: Solve for x
    x = 261,449,927.32/21,448.45
  6. Step 6: Final answer
    x = 12,189.69

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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.