Home / 20,040.49-27,653.70-11,086.57

Finding the Fourth Proportional to 20,040.49, 27,653.70 and 11,086.57

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Solution

The fourth proportional to 20,040.49, 27,653.70 and 11,086.57 is: 15,298.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.49 : 27,653.70 = 11,086.57 : x
  2. Step 2: Convert to fraction form
    20,040.49/27,653.70 = 11,086.57/x
  3. Step 3: Cross multiply
    20,040.49x = 27,653.70 × 11,086.57
  4. Step 4: Simplify right side
    20,040.49x = 306,584,680.81
  5. Step 5: Solve for x
    x = 306,584,680.81/20,040.49
  6. Step 6: Final answer
    x = 15,298.26

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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.