Home / 27,857.68-38,443.37-15,110.83

Finding the Fourth Proportional to 27,857.68, 38,443.37 and 15,110.83

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Solution

The fourth proportional to 27,857.68, 38,443.37 and 15,110.83 is: 20,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.68 : 38,443.37 = 15,110.83 : x
  2. Step 2: Convert to fraction form
    27,857.68/38,443.37 = 15,110.83/x
  3. Step 3: Cross multiply
    27,857.68x = 38,443.37 × 15,110.83
  4. Step 4: Simplify right side
    27,857.68x = 580,911,286.20
  5. Step 5: Solve for x
    x = 580,911,286.20/27,857.68
  6. Step 6: Final answer
    x = 20,852.82

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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.