Home / 21,144.85-29,180.85-11,713.41

Finding the Fourth Proportional to 21,144.85, 29,180.85 and 11,713.41

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Solution

The fourth proportional to 21,144.85, 29,180.85 and 11,713.41 is: 16,165.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144.85 : 29,180.85 = 11,713.41 : x
  2. Step 2: Convert to fraction form
    21,144.85/29,180.85 = 11,713.41/x
  3. Step 3: Cross multiply
    21,144.85x = 29,180.85 × 11,713.41
  4. Step 4: Simplify right side
    21,144.85x = 341,807,260.20
  5. Step 5: Solve for x
    x = 341,807,260.20/21,144.85
  6. Step 6: Final answer
    x = 16,165.04

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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.