Home / 27,908.67-38,513.80-15,161.75

Finding the Fourth Proportional to 27,908.67, 38,513.80 and 15,161.75

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Solution

The fourth proportional to 27,908.67, 38,513.80 and 15,161.75 is: 20,923.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,908.67 : 38,513.80 = 15,161.75 : x
  2. Step 2: Convert to fraction form
    27,908.67/38,513.80 = 15,161.75/x
  3. Step 3: Cross multiply
    27,908.67x = 38,513.80 × 15,161.75
  4. Step 4: Simplify right side
    27,908.67x = 583,936,376.68
  5. Step 5: Solve for x
    x = 583,936,376.68/27,908.67
  6. Step 6: Final answer
    x = 20,923.12

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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.