Home / 10,821.60-16,232.81-3,030.21

Finding the Fourth Proportional to 10,821.60, 16,232.81 and 3,030.21

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Solution

The fourth proportional to 10,821.60, 16,232.81 and 3,030.21 is: 4,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.60 : 16,232.81 = 3,030.21 : x
  2. Step 2: Convert to fraction form
    10,821.60/16,232.81 = 3,030.21/x
  3. Step 3: Cross multiply
    10,821.60x = 16,232.81 × 3,030.21
  4. Step 4: Simplify right side
    10,821.60x = 49,188,808.04
  5. Step 5: Solve for x
    x = 49,188,808.04/10,821.60
  6. Step 6: Final answer
    x = 4,545.43

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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.