Home / 19,540.77-29,244.48-12,421.41

Finding the Fourth Proportional to 19,540.77, 29,244.48 and 12,421.41

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Solution

The fourth proportional to 19,540.77, 29,244.48 and 12,421.41 is: 18,589.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.77 : 29,244.48 = 12,421.41 : x
  2. Step 2: Convert to fraction form
    19,540.77/29,244.48 = 12,421.41/x
  3. Step 3: Cross multiply
    19,540.77x = 29,244.48 × 12,421.41
  4. Step 4: Simplify right side
    19,540.77x = 363,257,676.32
  5. Step 5: Solve for x
    x = 363,257,676.32/19,540.77
  6. Step 6: Final answer
    x = 18,589.73

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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.