Home / 20,185.89-27,856.33-11,233.24

Finding the Fourth Proportional to 20,185.89, 27,856.33 and 11,233.24

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Solution

The fourth proportional to 20,185.89, 27,856.33 and 11,233.24 is: 15,501.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.89 : 27,856.33 = 11,233.24 : x
  2. Step 2: Convert to fraction form
    20,185.89/27,856.33 = 11,233.24/x
  3. Step 3: Cross multiply
    20,185.89x = 27,856.33 × 11,233.24
  4. Step 4: Simplify right side
    20,185.89x = 312,916,899.38
  5. Step 5: Solve for x
    x = 312,916,899.38/20,185.89
  6. Step 6: Final answer
    x = 15,501.76

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Double scale
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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.