Home / 27,645.76-38,121.60-18,197.92

Finding the Fourth Proportional to 27,645.76, 38,121.60 and 18,197.92

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Solution

The fourth proportional to 27,645.76, 38,121.60 and 18,197.92 is: 25,093.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.76 : 38,121.60 = 18,197.92 : x
  2. Step 2: Convert to fraction form
    27,645.76/38,121.60 = 18,197.92/x
  3. Step 3: Cross multiply
    27,645.76x = 38,121.60 × 18,197.92
  4. Step 4: Simplify right side
    27,645.76x = 693,733,827.07
  5. Step 5: Solve for x
    x = 693,733,827.07/27,645.76
  6. Step 6: Final answer
    x = 25,093.68

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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.