Home / 27,754.96-38,301.60-15,179.80

Finding the Fourth Proportional to 27,754.96, 38,301.60 and 15,179.80

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Solution

The fourth proportional to 27,754.96, 38,301.60 and 15,179.80 is: 20,947.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,754.96 : 38,301.60 = 15,179.80 : x
  2. Step 2: Convert to fraction form
    27,754.96/38,301.60 = 15,179.80/x
  3. Step 3: Cross multiply
    27,754.96x = 38,301.60 × 15,179.80
  4. Step 4: Simplify right side
    27,754.96x = 581,410,627.68
  5. Step 5: Solve for x
    x = 581,410,627.68/27,754.96
  6. Step 6: Final answer
    x = 20,947.99

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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.