Home / 16,821.80-25,229.82-5,575.76

Finding the Fourth Proportional to 16,821.80, 25,229.82 and 5,575.76

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Solution

The fourth proportional to 16,821.80, 25,229.82 and 5,575.76 is: 8,362.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.80 : 25,229.82 = 5,575.76 : x
  2. Step 2: Convert to fraction form
    16,821.80/25,229.82 = 5,575.76/x
  3. Step 3: Cross multiply
    16,821.80x = 25,229.82 × 5,575.76
  4. Step 4: Simplify right side
    16,821.80x = 140,675,421.16
  5. Step 5: Solve for x
    x = 140,675,421.16/16,821.80
  6. Step 6: Final answer
    x = 8,362.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.