Home / 27,857.82-38,443.56-15,110.88

Finding the Fourth Proportional to 27,857.82, 38,443.56 and 15,110.88

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Solution

The fourth proportional to 27,857.82, 38,443.56 and 15,110.88 is: 20,852.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.82 : 38,443.56 = 15,110.88 : x
  2. Step 2: Convert to fraction form
    27,857.82/38,443.56 = 15,110.88/x
  3. Step 3: Cross multiply
    27,857.82x = 38,443.56 × 15,110.88
  4. Step 4: Simplify right side
    27,857.82x = 580,916,021.93
  5. Step 5: Solve for x
    x = 580,916,021.93/27,857.82
  6. Step 6: Final answer
    x = 20,852.89

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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.