Home / 27,857.25-38,443.01-15,282.27

Finding the Fourth Proportional to 27,857.25, 38,443.01 and 15,282.27

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Solution

The fourth proportional to 27,857.25, 38,443.01 and 15,282.27 is: 21,089.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.25 : 38,443.01 = 15,282.27 : x
  2. Step 2: Convert to fraction form
    27,857.25/38,443.01 = 15,282.27/x
  3. Step 3: Cross multiply
    27,857.25x = 38,443.01 × 15,282.27
  4. Step 4: Simplify right side
    27,857.25x = 587,496,382.02
  5. Step 5: Solve for x
    x = 587,496,382.02/27,857.25
  6. Step 6: Final answer
    x = 21,089.53

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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.