Home / 10,821.42-16,230.92-3,030.84

Finding the Fourth Proportional to 10,821.42, 16,230.92 and 3,030.84

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Solution

The fourth proportional to 10,821.42, 16,230.92 and 3,030.84 is: 4,545.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.42 : 16,230.92 = 3,030.84 : x
  2. Step 2: Convert to fraction form
    10,821.42/16,230.92 = 3,030.84/x
  3. Step 3: Cross multiply
    10,821.42x = 16,230.92 × 3,030.84
  4. Step 4: Simplify right side
    10,821.42x = 49,193,306.42
  5. Step 5: Solve for x
    x = 49,193,306.42/10,821.42
  6. Step 6: Final answer
    x = 4,545.92

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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.