Home / 20,097.88-27,721.20-13,799.32

Finding the Fourth Proportional to 20,097.88, 27,721.20 and 13,799.32

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Solution

The fourth proportional to 20,097.88, 27,721.20 and 13,799.32 is: 19,033.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.88 : 27,721.20 = 13,799.32 : x
  2. Step 2: Convert to fraction form
    20,097.88/27,721.20 = 13,799.32/x
  3. Step 3: Cross multiply
    20,097.88x = 27,721.20 × 13,799.32
  4. Step 4: Simplify right side
    20,097.88x = 382,533,709.58
  5. Step 5: Solve for x
    x = 382,533,709.58/20,097.88
  6. Step 6: Final answer
    x = 19,033.54

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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.