Home / 28,747.32-43,120.99-12,933.88

Finding the Fourth Proportional to 28,747.32, 43,120.99 and 12,933.88

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Solution

The fourth proportional to 28,747.32, 43,120.99 and 12,933.88 is: 19,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.32 : 43,120.99 = 12,933.88 : x
  2. Step 2: Convert to fraction form
    28,747.32/43,120.99 = 12,933.88/x
  3. Step 3: Cross multiply
    28,747.32x = 43,120.99 × 12,933.88
  4. Step 4: Simplify right side
    28,747.32x = 557,721,710.14
  5. Step 5: Solve for x
    x = 557,721,710.14/28,747.32
  6. Step 6: Final answer
    x = 19,400.82

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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.