Home / 27,736.03-38,275.72-15,160.78

Finding the Fourth Proportional to 27,736.03, 38,275.72 and 15,160.78

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Solution

The fourth proportional to 27,736.03, 38,275.72 and 15,160.78 is: 20,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,736.03 : 38,275.72 = 15,160.78 : x
  2. Step 2: Convert to fraction form
    27,736.03/38,275.72 = 15,160.78/x
  3. Step 3: Cross multiply
    27,736.03x = 38,275.72 × 15,160.78
  4. Step 4: Simplify right side
    27,736.03x = 580,289,865.48
  5. Step 5: Solve for x
    x = 580,289,865.48/27,736.03
  6. Step 6: Final answer
    x = 20,921.88

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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.