Home / 20,295.66-27,992.16-13,028.46

Finding the Fourth Proportional to 20,295.66, 27,992.16 and 13,028.46

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Solution

The fourth proportional to 20,295.66, 27,992.16 and 13,028.46 is: 17,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.66 : 27,992.16 = 13,028.46 : x
  2. Step 2: Convert to fraction form
    20,295.66/27,992.16 = 13,028.46/x
  3. Step 3: Cross multiply
    20,295.66x = 27,992.16 × 13,028.46
  4. Step 4: Simplify right side
    20,295.66x = 364,694,736.87
  5. Step 5: Solve for x
    x = 364,694,736.87/20,295.66
  6. Step 6: Final answer
    x = 17,969.10

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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.