Home / 27,860.26-38,447.16-15,285.28

Finding the Fourth Proportional to 27,860.26, 38,447.16 and 15,285.28

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Solution

The fourth proportional to 27,860.26, 38,447.16 and 15,285.28 is: 21,093.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.26 : 38,447.16 = 15,285.28 : x
  2. Step 2: Convert to fraction form
    27,860.26/38,447.16 = 15,285.28/x
  3. Step 3: Cross multiply
    27,860.26x = 38,447.16 × 15,285.28
  4. Step 4: Simplify right side
    27,860.26x = 587,675,605.80
  5. Step 5: Solve for x
    x = 587,675,605.80/27,860.26
  6. Step 6: Final answer
    x = 21,093.69

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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.