Home / 27,911.88-38,518.38-15,336.62

Finding the Fourth Proportional to 27,911.88, 38,518.38 and 15,336.62

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Solution

The fourth proportional to 27,911.88, 38,518.38 and 15,336.62 is: 21,164.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.88 : 38,518.38 = 15,336.62 : x
  2. Step 2: Convert to fraction form
    27,911.88/38,518.38 = 15,336.62/x
  3. Step 3: Cross multiply
    27,911.88x = 38,518.38 × 15,336.62
  4. Step 4: Simplify right side
    27,911.88x = 590,741,757.08
  5. Step 5: Solve for x
    x = 590,741,757.08/27,911.88
  6. Step 6: Final answer
    x = 21,164.53

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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.