Home / 21,869.83-32,793.40-7,824.43

Finding the Fourth Proportional to 21,869.83, 32,793.40 and 7,824.43

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Solution

The fourth proportional to 21,869.83, 32,793.40 and 7,824.43 is: 11,732.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,869.83 : 32,793.40 = 7,824.43 : x
  2. Step 2: Convert to fraction form
    21,869.83/32,793.40 = 7,824.43/x
  3. Step 3: Cross multiply
    21,869.83x = 32,793.40 × 7,824.43
  4. Step 4: Simplify right side
    21,869.83x = 256,589,662.76
  5. Step 5: Solve for x
    x = 256,589,662.76/21,869.83
  6. Step 6: Final answer
    x = 11,732.59

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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.