Home / 27,736.71-38,276.60-15,161.55

Finding the Fourth Proportional to 27,736.71, 38,276.60 and 15,161.55

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Solution

The fourth proportional to 27,736.71, 38,276.60 and 15,161.55 is: 20,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,736.71 : 38,276.60 = 15,161.55 : x
  2. Step 2: Convert to fraction form
    27,736.71/38,276.60 = 15,161.55/x
  3. Step 3: Cross multiply
    27,736.71x = 38,276.60 × 15,161.55
  4. Step 4: Simplify right side
    27,736.71x = 580,332,508.92
  5. Step 5: Solve for x
    x = 580,332,508.92/27,736.71
  6. Step 6: Final answer
    x = 20,922.90

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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.