Home / 27,121.69-37,427.53-15,021.02

Finding the Fourth Proportional to 27,121.69, 37,427.53 and 15,021.02

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Solution

The fourth proportional to 27,121.69, 37,427.53 and 15,021.02 is: 20,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.69 : 37,427.53 = 15,021.02 : x
  2. Step 2: Convert to fraction form
    27,121.69/37,427.53 = 15,021.02/x
  3. Step 3: Cross multiply
    27,121.69x = 37,427.53 × 15,021.02
  4. Step 4: Simplify right side
    27,121.69x = 562,199,676.68
  5. Step 5: Solve for x
    x = 562,199,676.68/27,121.69
  6. Step 6: Final answer
    x = 20,728.78

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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.