Home / 27,965.96-38,593.03-15,390.71

Finding the Fourth Proportional to 27,965.96, 38,593.03 and 15,390.71

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Solution

The fourth proportional to 27,965.96, 38,593.03 and 15,390.71 is: 21,239.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,965.96 : 38,593.03 = 15,390.71 : x
  2. Step 2: Convert to fraction form
    27,965.96/38,593.03 = 15,390.71/x
  3. Step 3: Cross multiply
    27,965.96x = 38,593.03 × 15,390.71
  4. Step 4: Simplify right side
    27,965.96x = 593,974,226.72
  5. Step 5: Solve for x
    x = 593,974,226.72/27,965.96
  6. Step 6: Final answer
    x = 21,239.18

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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.