Home / 27,694.68-38,216.88-15,119.40

Finding the Fourth Proportional to 27,694.68, 38,216.88 and 15,119.40

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Solution

The fourth proportional to 27,694.68, 38,216.88 and 15,119.40 is: 20,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,694.68 : 38,216.88 = 15,119.40 : x
  2. Step 2: Convert to fraction form
    27,694.68/38,216.88 = 15,119.40/x
  3. Step 3: Cross multiply
    27,694.68x = 38,216.88 × 15,119.40
  4. Step 4: Simplify right side
    27,694.68x = 577,816,295.47
  5. Step 5: Solve for x
    x = 577,816,295.47/27,694.68
  6. Step 6: Final answer
    x = 20,863.80

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Half scale
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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.