Home / 27,827.20-38,403.98-15,894.37

Finding the Fourth Proportional to 27,827.20, 38,403.98 and 15,894.37

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Solution

The fourth proportional to 27,827.20, 38,403.98 and 15,894.37 is: 21,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,827.20 : 38,403.98 = 15,894.37 : x
  2. Step 2: Convert to fraction form
    27,827.20/38,403.98 = 15,894.37/x
  3. Step 3: Cross multiply
    27,827.20x = 38,403.98 × 15,894.37
  4. Step 4: Simplify right side
    27,827.20x = 610,407,067.59
  5. Step 5: Solve for x
    x = 610,407,067.59/27,827.20
  6. Step 6: Final answer
    x = 21,935.63

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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.