Home / 27,821.72-38,387.12-16,493.87

Finding the Fourth Proportional to 27,821.72, 38,387.12 and 16,493.87

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Solution

The fourth proportional to 27,821.72, 38,387.12 and 16,493.87 is: 22,757.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,821.72 : 38,387.12 = 16,493.87 : x
  2. Step 2: Convert to fraction form
    27,821.72/38,387.12 = 16,493.87/x
  3. Step 3: Cross multiply
    27,821.72x = 38,387.12 × 16,493.87
  4. Step 4: Simplify right side
    27,821.72x = 633,152,180.45
  5. Step 5: Solve for x
    x = 633,152,180.45/27,821.72
  6. Step 6: Final answer
    x = 22,757.48

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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.