Home / 21,310.16-29,408.54-11,750.69

Finding the Fourth Proportional to 21,310.16, 29,408.54 and 11,750.69

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Solution

The fourth proportional to 21,310.16, 29,408.54 and 11,750.69 is: 16,216.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,310.16 : 29,408.54 = 11,750.69 : x
  2. Step 2: Convert to fraction form
    21,310.16/29,408.54 = 11,750.69/x
  3. Step 3: Cross multiply
    21,310.16x = 29,408.54 × 11,750.69
  4. Step 4: Simplify right side
    21,310.16x = 345,570,651.66
  5. Step 5: Solve for x
    x = 345,570,651.66/21,310.16
  6. Step 6: Final answer
    x = 16,216.24

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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.