Home / 21,767.67-32,644.65-8,439.73

Finding the Fourth Proportional to 21,767.67, 32,644.65 and 8,439.73

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Solution

The fourth proportional to 21,767.67, 32,644.65 and 8,439.73 is: 12,656.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,767.67 : 32,644.65 = 8,439.73 : x
  2. Step 2: Convert to fraction form
    21,767.67/32,644.65 = 8,439.73/x
  3. Step 3: Cross multiply
    21,767.67x = 32,644.65 × 8,439.73
  4. Step 4: Simplify right side
    21,767.67x = 275,511,981.98
  5. Step 5: Solve for x
    x = 275,511,981.98/21,767.67
  6. Step 6: Final answer
    x = 12,656.93

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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.