Home / 27,684.88-38,203.92-15,746.80

Finding the Fourth Proportional to 27,684.88, 38,203.92 and 15,746.80

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Solution

The fourth proportional to 27,684.88, 38,203.92 and 15,746.80 is: 21,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,684.88 : 38,203.92 = 15,746.80 : x
  2. Step 2: Convert to fraction form
    27,684.88/38,203.92 = 15,746.80/x
  3. Step 3: Cross multiply
    27,684.88x = 38,203.92 × 15,746.80
  4. Step 4: Simplify right side
    27,684.88x = 601,589,487.46
  5. Step 5: Solve for x
    x = 601,589,487.46/27,684.88
  6. Step 6: Final answer
    x = 21,729.89

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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.