Home / 27,838.76-38,418.44-19,899.95

Finding the Fourth Proportional to 27,838.76, 38,418.44 and 19,899.95

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Solution

The fourth proportional to 27,838.76, 38,418.44 and 19,899.95 is: 27,462.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,838.76 : 38,418.44 = 19,899.95 : x
  2. Step 2: Convert to fraction form
    27,838.76/38,418.44 = 19,899.95/x
  3. Step 3: Cross multiply
    27,838.76x = 38,418.44 × 19,899.95
  4. Step 4: Simplify right side
    27,838.76x = 764,524,743.49
  5. Step 5: Solve for x
    x = 764,524,743.49/27,838.76
  6. Step 6: Final answer
    x = 27,462.61

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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.