Home / 27,974.30-38,604.54-15,399.05

Finding the Fourth Proportional to 27,974.30, 38,604.54 and 15,399.05

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Solution

The fourth proportional to 27,974.30, 38,604.54 and 15,399.05 is: 21,250.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,974.30 : 38,604.54 = 15,399.05 : x
  2. Step 2: Convert to fraction form
    27,974.30/38,604.54 = 15,399.05/x
  3. Step 3: Cross multiply
    27,974.30x = 38,604.54 × 15,399.05
  4. Step 4: Simplify right side
    27,974.30x = 594,473,241.69
  5. Step 5: Solve for x
    x = 594,473,241.69/27,974.30
  6. Step 6: Final answer
    x = 21,250.69

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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.