Home / 28,972.52-43,425.66-12,308.12

Finding the Fourth Proportional to 28,972.52, 43,425.66 and 12,308.12

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Solution

The fourth proportional to 28,972.52, 43,425.66 and 12,308.12 is: 18,448.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.52 : 43,425.66 = 12,308.12 : x
  2. Step 2: Convert to fraction form
    28,972.52/43,425.66 = 12,308.12/x
  3. Step 3: Cross multiply
    28,972.52x = 43,425.66 × 12,308.12
  4. Step 4: Simplify right side
    28,972.52x = 534,488,234.36
  5. Step 5: Solve for x
    x = 534,488,234.36/28,972.52
  6. Step 6: Final answer
    x = 18,448.11

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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.