Home / 21,451.44-29,616.12-16,993.20

Finding the Fourth Proportional to 21,451.44, 29,616.12 and 16,993.20

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Solution

The fourth proportional to 21,451.44, 29,616.12 and 16,993.20 is: 23,461.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,451.44 : 29,616.12 = 16,993.20 : x
  2. Step 2: Convert to fraction form
    21,451.44/29,616.12 = 16,993.20/x
  3. Step 3: Cross multiply
    21,451.44x = 29,616.12 × 16,993.20
  4. Step 4: Simplify right side
    21,451.44x = 503,272,650.38
  5. Step 5: Solve for x
    x = 503,272,650.38/21,451.44
  6. Step 6: Final answer
    x = 23,461.02

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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.