Home / 20,028.24-27,639.16-11,076.35

Finding the Fourth Proportional to 20,028.24, 27,639.16 and 11,076.35

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Solution

The fourth proportional to 20,028.24, 27,639.16 and 11,076.35 is: 15,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.24 : 27,639.16 = 11,076.35 : x
  2. Step 2: Convert to fraction form
    20,028.24/27,639.16 = 11,076.35/x
  3. Step 3: Cross multiply
    20,028.24x = 27,639.16 × 11,076.35
  4. Step 4: Simplify right side
    20,028.24x = 306,141,009.87
  5. Step 5: Solve for x
    x = 306,141,009.87/20,028.24
  6. Step 6: Final answer
    x = 15,285.47

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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.