Home / 19,986.30-27,580.74-11,033.61

Finding the Fourth Proportional to 19,986.30, 27,580.74 and 11,033.61

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Solution

The fourth proportional to 19,986.30, 27,580.74 and 11,033.61 is: 15,226.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,986.30 : 27,580.74 = 11,033.61 : x
  2. Step 2: Convert to fraction form
    19,986.30/27,580.74 = 11,033.61/x
  3. Step 3: Cross multiply
    19,986.30x = 27,580.74 × 11,033.61
  4. Step 4: Simplify right side
    19,986.30x = 304,315,142.46
  5. Step 5: Solve for x
    x = 304,315,142.46/19,986.30
  6. Step 6: Final answer
    x = 15,226.19

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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.