Home / 21,310.33-29,408.46-11,750.56

Finding the Fourth Proportional to 21,310.33, 29,408.46 and 11,750.56

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Solution

The fourth proportional to 21,310.33, 29,408.46 and 11,750.56 is: 16,215.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,310.33 : 29,408.46 = 11,750.56 : x
  2. Step 2: Convert to fraction form
    21,310.33/29,408.46 = 11,750.56/x
  3. Step 3: Cross multiply
    21,310.33x = 29,408.46 × 11,750.56
  4. Step 4: Simplify right side
    21,310.33x = 345,565,873.74
  5. Step 5: Solve for x
    x = 345,565,873.74/21,310.33
  6. Step 6: Final answer
    x = 16,215.89

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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.