Home / 19,540.68-29,317.50-12,992.64

Finding the Fourth Proportional to 19,540.68, 29,317.50 and 12,992.64

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Solution

The fourth proportional to 19,540.68, 29,317.50 and 12,992.64 is: 19,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.68 : 29,317.50 = 12,992.64 : x
  2. Step 2: Convert to fraction form
    19,540.68/29,317.50 = 12,992.64/x
  3. Step 3: Cross multiply
    19,540.68x = 29,317.50 × 12,992.64
  4. Step 4: Simplify right side
    19,540.68x = 380,911,723.20
  5. Step 5: Solve for x
    x = 380,911,723.20/19,540.68
  6. Step 6: Final answer
    x = 19,493.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.