Home / 21,176.92-29,224.29-11,745.64

Finding the Fourth Proportional to 21,176.92, 29,224.29 and 11,745.64

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Solution

The fourth proportional to 21,176.92, 29,224.29 and 11,745.64 is: 16,209.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.92 : 29,224.29 = 11,745.64 : x
  2. Step 2: Convert to fraction form
    21,176.92/29,224.29 = 11,745.64/x
  3. Step 3: Cross multiply
    21,176.92x = 29,224.29 × 11,745.64
  4. Step 4: Simplify right side
    21,176.92x = 343,257,989.60
  5. Step 5: Solve for x
    x = 343,257,989.60/21,176.92
  6. Step 6: Final answer
    x = 16,209.06

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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.