Home / 27,827.43-38,405.79-17,220.48

Finding the Fourth Proportional to 27,827.43, 38,405.79 and 17,220.48

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Solution

The fourth proportional to 27,827.43, 38,405.79 and 17,220.48 is: 23,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,827.43 : 38,405.79 = 17,220.48 : x
  2. Step 2: Convert to fraction form
    27,827.43/38,405.79 = 17,220.48/x
  3. Step 3: Cross multiply
    27,827.43x = 38,405.79 × 17,220.48
  4. Step 4: Simplify right side
    27,827.43x = 661,366,138.58
  5. Step 5: Solve for x
    x = 661,366,138.58/27,827.43
  6. Step 6: Final answer
    x = 23,766.70

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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.