Home / 27,121.91-37,430.06-15,186.33

Finding the Fourth Proportional to 27,121.91, 37,430.06 and 15,186.33

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Solution

The fourth proportional to 27,121.91, 37,430.06 and 15,186.33 is: 20,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.91 : 37,430.06 = 15,186.33 : x
  2. Step 2: Convert to fraction form
    27,121.91/37,430.06 = 15,186.33/x
  3. Step 3: Cross multiply
    27,121.91x = 37,430.06 × 15,186.33
  4. Step 4: Simplify right side
    27,121.91x = 568,425,167.15
  5. Step 5: Solve for x
    x = 568,425,167.15/27,121.91
  6. Step 6: Final answer
    x = 20,958.16

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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.