Home / 21,610.56-29,820.24-13,225.44

Finding the Fourth Proportional to 21,610.56, 29,820.24 and 13,225.44

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Solution

The fourth proportional to 21,610.56, 29,820.24 and 13,225.44 is: 18,249.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.56 : 29,820.24 = 13,225.44 : x
  2. Step 2: Convert to fraction form
    21,610.56/29,820.24 = 13,225.44/x
  3. Step 3: Cross multiply
    21,610.56x = 29,820.24 × 13,225.44
  4. Step 4: Simplify right side
    21,610.56x = 394,385,794.91
  5. Step 5: Solve for x
    x = 394,385,794.91/21,610.56
  6. Step 6: Final answer
    x = 18,249.68

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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.