Home / 27,694.96-38,219.70-15,119.80

Finding the Fourth Proportional to 27,694.96, 38,219.70 and 15,119.80

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Solution

The fourth proportional to 27,694.96, 38,219.70 and 15,119.80 is: 20,865.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,694.96 : 38,219.70 = 15,119.80 : x
  2. Step 2: Convert to fraction form
    27,694.96/38,219.70 = 15,119.80/x
  3. Step 3: Cross multiply
    27,694.96x = 38,219.70 × 15,119.80
  4. Step 4: Simplify right side
    27,694.96x = 577,874,220.06
  5. Step 5: Solve for x
    x = 577,874,220.06/27,694.96
  6. Step 6: Final answer
    x = 20,865.68

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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.