Home / 28,945.11-43,419.35-11,175.86

Finding the Fourth Proportional to 28,945.11, 43,419.35 and 11,175.86

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Solution

The fourth proportional to 28,945.11, 43,419.35 and 11,175.86 is: 16,764.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.11 : 43,419.35 = 11,175.86 : x
  2. Step 2: Convert to fraction form
    28,945.11/43,419.35 = 11,175.86/x
  3. Step 3: Cross multiply
    28,945.11x = 43,419.35 × 11,175.86
  4. Step 4: Simplify right side
    28,945.11x = 485,248,303.91
  5. Step 5: Solve for x
    x = 485,248,303.91/28,945.11
  6. Step 6: Final answer
    x = 16,764.43

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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.