Home / 27,821.22-38,387.22-16,485.05

Finding the Fourth Proportional to 27,821.22, 38,387.22 and 16,485.05

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Solution

The fourth proportional to 27,821.22, 38,387.22 and 16,485.05 is: 22,745.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,821.22 : 38,387.22 = 16,485.05 : x
  2. Step 2: Convert to fraction form
    27,821.22/38,387.22 = 16,485.05/x
  3. Step 3: Cross multiply
    27,821.22x = 38,387.22 × 16,485.05
  4. Step 4: Simplify right side
    27,821.22x = 632,815,241.06
  5. Step 5: Solve for x
    x = 632,815,241.06/27,821.22
  6. Step 6: Final answer
    x = 22,745.78

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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.