Home / 27,623.97-38,122.17-15,688.41

Finding the Fourth Proportional to 27,623.97, 38,122.17 and 15,688.41

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Solution

The fourth proportional to 27,623.97, 38,122.17 and 15,688.41 is: 21,650.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,623.97 : 38,122.17 = 15,688.41 : x
  2. Step 2: Convert to fraction form
    27,623.97/38,122.17 = 15,688.41/x
  3. Step 3: Cross multiply
    27,623.97x = 38,122.17 × 15,688.41
  4. Step 4: Simplify right side
    27,623.97x = 598,076,233.05
  5. Step 5: Solve for x
    x = 598,076,233.05/27,623.97
  6. Step 6: Final answer
    x = 21,650.63

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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.