Home / 30,020.87-41,428.20-16,591.83

Finding the Fourth Proportional to 30,020.87, 41,428.20 and 16,591.83

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Solution

The fourth proportional to 30,020.87, 41,428.20 and 16,591.83 is: 22,896.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020.87 : 41,428.20 = 16,591.83 : x
  2. Step 2: Convert to fraction form
    30,020.87/41,428.20 = 16,591.83/x
  3. Step 3: Cross multiply
    30,020.87x = 41,428.20 × 16,591.83
  4. Step 4: Simplify right side
    30,020.87x = 687,369,651.61
  5. Step 5: Solve for x
    x = 687,369,651.61/30,020.87
  6. Step 6: Final answer
    x = 22,896.40

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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.