Home / 27,630.80-38,133.24-15,694.88

Finding the Fourth Proportional to 27,630.80, 38,133.24 and 15,694.88

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Solution

The fourth proportional to 27,630.80, 38,133.24 and 15,694.88 is: 21,660.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,630.80 : 38,133.24 = 15,694.88 : x
  2. Step 2: Convert to fraction form
    27,630.80/38,133.24 = 15,694.88/x
  3. Step 3: Cross multiply
    27,630.80x = 38,133.24 × 15,694.88
  4. Step 4: Simplify right side
    27,630.80x = 598,496,625.81
  5. Step 5: Solve for x
    x = 598,496,625.81/27,630.80
  6. Step 6: Final answer
    x = 21,660.49

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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.