Home / 15,581.40-23,372.10-13,896.60

Finding the Fourth Proportional to 15,581.40, 23,372.10 and 13,896.60

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Solution

The fourth proportional to 15,581.40, 23,372.10 and 13,896.60 is: 20,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.40 : 23,372.10 = 13,896.60 : x
  2. Step 2: Convert to fraction form
    15,581.40/23,372.10 = 13,896.60/x
  3. Step 3: Cross multiply
    15,581.40x = 23,372.10 × 13,896.60
  4. Step 4: Simplify right side
    15,581.40x = 324,792,724.86
  5. Step 5: Solve for x
    x = 324,792,724.86/15,581.40
  6. Step 6: Final answer
    x = 20,844.90

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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.