Home / 21,890.96-32,839.68-8,038.88

Finding the Fourth Proportional to 21,890.96, 32,839.68 and 8,038.88

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Solution

The fourth proportional to 21,890.96, 32,839.68 and 8,038.88 is: 12,059.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.96 : 32,839.68 = 8,038.88 : x
  2. Step 2: Convert to fraction form
    21,890.96/32,839.68 = 8,038.88/x
  3. Step 3: Cross multiply
    21,890.96x = 32,839.68 × 8,038.88
  4. Step 4: Simplify right side
    21,890.96x = 263,994,082.56
  5. Step 5: Solve for x
    x = 263,994,082.56/21,890.96
  6. Step 6: Final answer
    x = 12,059.51

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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.