Home / 27,693.94-38,217.63-15,118.69

Finding the Fourth Proportional to 27,693.94, 38,217.63 and 15,118.69

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Solution

The fourth proportional to 27,693.94, 38,217.63 and 15,118.69 is: 20,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,693.94 : 38,217.63 = 15,118.69 : x
  2. Step 2: Convert to fraction form
    27,693.94/38,217.63 = 15,118.69/x
  3. Step 3: Cross multiply
    27,693.94x = 38,217.63 × 15,118.69
  4. Step 4: Simplify right side
    27,693.94x = 577,800,461.66
  5. Step 5: Solve for x
    x = 577,800,461.66/27,693.94
  6. Step 6: Final answer
    x = 20,863.79

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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.