Home / 20,732.45-28,611.77-11,660.65

Finding the Fourth Proportional to 20,732.45, 28,611.77 and 11,660.65

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Solution

The fourth proportional to 20,732.45, 28,611.77 and 11,660.65 is: 16,092.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.45 : 28,611.77 = 11,660.65 : x
  2. Step 2: Convert to fraction form
    20,732.45/28,611.77 = 11,660.65/x
  3. Step 3: Cross multiply
    20,732.45x = 28,611.77 × 11,660.65
  4. Step 4: Simplify right side
    20,732.45x = 333,631,844.64
  5. Step 5: Solve for x
    x = 333,631,844.64/20,732.45
  6. Step 6: Final answer
    x = 16,092.26

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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.