Home / 27,684.86-38,191.82-18,120.54

Finding the Fourth Proportional to 27,684.86, 38,191.82 and 18,120.54

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Solution

The fourth proportional to 27,684.86, 38,191.82 and 18,120.54 is: 24,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,684.86 : 38,191.82 = 18,120.54 : x
  2. Step 2: Convert to fraction form
    27,684.86/38,191.82 = 18,120.54/x
  3. Step 3: Cross multiply
    27,684.86x = 38,191.82 × 18,120.54
  4. Step 4: Simplify right side
    27,684.86x = 692,056,447.28
  5. Step 5: Solve for x
    x = 692,056,447.28/27,684.86
  6. Step 6: Final answer
    x = 24,997.65

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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.