Home / 27,965.75-38,593.55-15,219.76

Finding the Fourth Proportional to 27,965.75, 38,593.55 and 15,219.76

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Solution

The fourth proportional to 27,965.75, 38,593.55 and 15,219.76 is: 21,003.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,965.75 : 38,593.55 = 15,219.76 : x
  2. Step 2: Convert to fraction form
    27,965.75/38,593.55 = 15,219.76/x
  3. Step 3: Cross multiply
    27,965.75x = 38,593.55 × 15,219.76
  4. Step 4: Simplify right side
    27,965.75x = 587,384,568.55
  5. Step 5: Solve for x
    x = 587,384,568.55/27,965.75
  6. Step 6: Final answer
    x = 21,003.71

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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.