Home / 21,148.92-29,184.24-11,716.80

Finding the Fourth Proportional to 21,148.92, 29,184.24 and 11,716.80

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Solution

The fourth proportional to 21,148.92, 29,184.24 and 11,716.80 is: 16,168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,148.92 : 29,184.24 = 11,716.80 : x
  2. Step 2: Convert to fraction form
    21,148.92/29,184.24 = 11,716.80/x
  3. Step 3: Cross multiply
    21,148.92x = 29,184.24 × 11,716.80
  4. Step 4: Simplify right side
    21,148.92x = 341,945,903.23
  5. Step 5: Solve for x
    x = 341,945,903.23/21,148.92
  6. Step 6: Final answer
    x = 16,168.48

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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.