Home / 27,121.64-37,429.49-15,185.68

Finding the Fourth Proportional to 27,121.64, 37,429.49 and 15,185.68

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Solution

The fourth proportional to 27,121.64, 37,429.49 and 15,185.68 is: 20,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.64 : 37,429.49 = 15,185.68 : x
  2. Step 2: Convert to fraction form
    27,121.64/37,429.49 = 15,185.68/x
  3. Step 3: Cross multiply
    27,121.64x = 37,429.49 × 15,185.68
  4. Step 4: Simplify right side
    27,121.64x = 568,392,202.09
  5. Step 5: Solve for x
    x = 568,392,202.09/27,121.64
  6. Step 6: Final answer
    x = 20,957.15

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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.