Home / 20,068.66-27,693.54-11,115.62

Finding the Fourth Proportional to 20,068.66, 27,693.54 and 11,115.62

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Solution

The fourth proportional to 20,068.66, 27,693.54 and 11,115.62 is: 15,338.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.66 : 27,693.54 = 11,115.62 : x
  2. Step 2: Convert to fraction form
    20,068.66/27,693.54 = 11,115.62/x
  3. Step 3: Cross multiply
    20,068.66x = 27,693.54 × 11,115.62
  4. Step 4: Simplify right side
    20,068.66x = 307,830,867.09
  5. Step 5: Solve for x
    x = 307,830,867.09/20,068.66
  6. Step 6: Final answer
    x = 15,338.88

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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.