Home / 21,660.72-32,503.22-11,800.69

Finding the Fourth Proportional to 21,660.72, 32,503.22 and 11,800.69

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Solution

The fourth proportional to 21,660.72, 32,503.22 and 11,800.69 is: 17,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,660.72 : 32,503.22 = 11,800.69 : x
  2. Step 2: Convert to fraction form
    21,660.72/32,503.22 = 11,800.69/x
  3. Step 3: Cross multiply
    21,660.72x = 32,503.22 × 11,800.69
  4. Step 4: Simplify right side
    21,660.72x = 383,560,330.84
  5. Step 5: Solve for x
    x = 383,560,330.84/21,660.72
  6. Step 6: Final answer
    x = 17,707.65

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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.