Home / 13,825.05-20,737.66-3,436.80

Finding the Fourth Proportional to 13,825.05, 20,737.66 and 3,436.80

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Solution

The fourth proportional to 13,825.05, 20,737.66 and 3,436.80 is: 5,155.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.05 : 20,737.66 = 3,436.80 : x
  2. Step 2: Convert to fraction form
    13,825.05/20,737.66 = 3,436.80/x
  3. Step 3: Cross multiply
    13,825.05x = 20,737.66 × 3,436.80
  4. Step 4: Simplify right side
    13,825.05x = 71,271,280.11
  5. Step 5: Solve for x
    x = 71,271,280.11/13,825.05
  6. Step 6: Final answer
    x = 5,155.23

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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.