Home / 27,388.88-37,787.82-21,628.06

Finding the Fourth Proportional to 27,388.88, 37,787.82 and 21,628.06

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Solution

The fourth proportional to 27,388.88, 37,787.82 and 21,628.06 is: 29,839.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,388.88 : 37,787.82 = 21,628.06 : x
  2. Step 2: Convert to fraction form
    27,388.88/37,787.82 = 21,628.06/x
  3. Step 3: Cross multiply
    27,388.88x = 37,787.82 × 21,628.06
  4. Step 4: Simplify right side
    27,388.88x = 817,277,238.23
  5. Step 5: Solve for x
    x = 817,277,238.23/27,388.88
  6. Step 6: Final answer
    x = 29,839.75

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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.