Home / 29,170.50-43,755.60-12,519.72

Finding the Fourth Proportional to 29,170.50, 43,755.60 and 12,519.72

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Solution

The fourth proportional to 29,170.50, 43,755.60 and 12,519.72 is: 18,779.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,170.50 : 43,755.60 = 12,519.72 : x
  2. Step 2: Convert to fraction form
    29,170.50/43,755.60 = 12,519.72/x
  3. Step 3: Cross multiply
    29,170.50x = 43,755.60 × 12,519.72
  4. Step 4: Simplify right side
    29,170.50x = 547,807,860.43
  5. Step 5: Solve for x
    x = 547,807,860.43/29,170.50
  6. Step 6: Final answer
    x = 18,779.52

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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.