Home / 21,819.76-32,734.50-11,953.96

Finding the Fourth Proportional to 21,819.76, 32,734.50 and 11,953.96

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Solution

The fourth proportional to 21,819.76, 32,734.50 and 11,953.96 is: 17,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819.76 : 32,734.50 = 11,953.96 : x
  2. Step 2: Convert to fraction form
    21,819.76/32,734.50 = 11,953.96/x
  3. Step 3: Cross multiply
    21,819.76x = 32,734.50 × 11,953.96
  4. Step 4: Simplify right side
    21,819.76x = 391,306,903.62
  5. Step 5: Solve for x
    x = 391,306,903.62/21,819.76
  6. Step 6: Final answer
    x = 17,933.60

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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.