Home / 20,219.52-27,896.34-11,265.30

Finding the Fourth Proportional to 20,219.52, 27,896.34 and 11,265.30

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Solution

The fourth proportional to 20,219.52, 27,896.34 and 11,265.30 is: 15,542.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.52 : 27,896.34 = 11,265.30 : x
  2. Step 2: Convert to fraction form
    20,219.52/27,896.34 = 11,265.30/x
  3. Step 3: Cross multiply
    20,219.52x = 27,896.34 × 11,265.30
  4. Step 4: Simplify right side
    20,219.52x = 314,260,639.00
  5. Step 5: Solve for x
    x = 314,260,639.00/20,219.52
  6. Step 6: Final answer
    x = 15,542.44

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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.