Home / 20,251.53-30,386.06-10,880.61

Finding the Fourth Proportional to 20,251.53, 30,386.06 and 10,880.61

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Solution

The fourth proportional to 20,251.53, 30,386.06 and 10,880.61 is: 16,325.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.53 : 30,386.06 = 10,880.61 : x
  2. Step 2: Convert to fraction form
    20,251.53/30,386.06 = 10,880.61/x
  3. Step 3: Cross multiply
    20,251.53x = 30,386.06 × 10,880.61
  4. Step 4: Simplify right side
    20,251.53x = 330,618,813.89
  5. Step 5: Solve for x
    x = 330,618,813.89/20,251.53
  6. Step 6: Final answer
    x = 16,325.62

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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.