Home / 27,717.19-38,204.80-21,656.84

Finding the Fourth Proportional to 27,717.19, 38,204.80 and 21,656.84

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Solution

The fourth proportional to 27,717.19, 38,204.80 and 21,656.84 is: 29,851.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,717.19 : 38,204.80 = 21,656.84 : x
  2. Step 2: Convert to fraction form
    27,717.19/38,204.80 = 21,656.84/x
  3. Step 3: Cross multiply
    27,717.19x = 38,204.80 × 21,656.84
  4. Step 4: Simplify right side
    27,717.19x = 827,394,995.67
  5. Step 5: Solve for x
    x = 827,394,995.67/27,717.19
  6. Step 6: Final answer
    x = 29,851.33

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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.