Home / 26,299.28-39,372.36-13,789.64

Finding the Fourth Proportional to 26,299.28, 39,372.36 and 13,789.64

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Solution

The fourth proportional to 26,299.28, 39,372.36 and 13,789.64 is: 20,644.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,299.28 : 39,372.36 = 13,789.64 : x
  2. Step 2: Convert to fraction form
    26,299.28/39,372.36 = 13,789.64/x
  3. Step 3: Cross multiply
    26,299.28x = 39,372.36 × 13,789.64
  4. Step 4: Simplify right side
    26,299.28x = 542,930,670.35
  5. Step 5: Solve for x
    x = 542,930,670.35/26,299.28
  6. Step 6: Final answer
    x = 20,644.32

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1.5x scale

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.