Home / 27,828.43-38,407.17-17,221.48

Finding the Fourth Proportional to 27,828.43, 38,407.17 and 17,221.48

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Solution

The fourth proportional to 27,828.43, 38,407.17 and 17,221.48 is: 23,768.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,828.43 : 38,407.17 = 17,221.48 : x
  2. Step 2: Convert to fraction form
    27,828.43/38,407.17 = 17,221.48/x
  3. Step 3: Cross multiply
    27,828.43x = 38,407.17 × 17,221.48
  4. Step 4: Simplify right side
    27,828.43x = 661,428,310.01
  5. Step 5: Solve for x
    x = 661,428,310.01/27,828.43
  6. Step 6: Final answer
    x = 23,768.08

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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.