Home / 27,479.25-37,903.29-21,805.00

Finding the Fourth Proportional to 27,479.25, 37,903.29 and 21,805.00

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Solution

The fourth proportional to 27,479.25, 37,903.29 and 21,805.00 is: 30,076.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,479.25 : 37,903.29 = 21,805.00 : x
  2. Step 2: Convert to fraction form
    27,479.25/37,903.29 = 21,805.00/x
  3. Step 3: Cross multiply
    27,479.25x = 37,903.29 × 21,805.00
  4. Step 4: Simplify right side
    27,479.25x = 826,481,184.58
  5. Step 5: Solve for x
    x = 826,481,184.58/27,479.25
  6. Step 6: Final answer
    x = 30,076.56

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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.