Home / 20,566.69-28,382.62-11,615.54

Finding the Fourth Proportional to 20,566.69, 28,382.62 and 11,615.54

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Solution

The fourth proportional to 20,566.69, 28,382.62 and 11,615.54 is: 16,029.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.69 : 28,382.62 = 11,615.54 : x
  2. Step 2: Convert to fraction form
    20,566.69/28,382.62 = 11,615.54/x
  3. Step 3: Cross multiply
    20,566.69x = 28,382.62 × 11,615.54
  4. Step 4: Simplify right side
    20,566.69x = 329,679,457.91
  5. Step 5: Solve for x
    x = 329,679,457.91/20,566.69
  6. Step 6: Final answer
    x = 16,029.78

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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.