Home / 20,836.67-28,754.07-11,404.63

Finding the Fourth Proportional to 20,836.67, 28,754.07 and 11,404.63

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Solution

The fourth proportional to 20,836.67, 28,754.07 and 11,404.63 is: 15,738.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.67 : 28,754.07 = 11,404.63 : x
  2. Step 2: Convert to fraction form
    20,836.67/28,754.07 = 11,404.63/x
  3. Step 3: Cross multiply
    20,836.67x = 28,754.07 × 11,404.63
  4. Step 4: Simplify right side
    20,836.67x = 327,929,385.57
  5. Step 5: Solve for x
    x = 327,929,385.57/20,836.67
  6. Step 6: Final answer
    x = 15,738.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.