Home / 28,867.49-43,302.44-9,145.61

Finding the Fourth Proportional to 28,867.49, 43,302.44 and 9,145.61

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Solution

The fourth proportional to 28,867.49, 43,302.44 and 9,145.61 is: 13,718.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,867.49 : 43,302.44 = 9,145.61 : x
  2. Step 2: Convert to fraction form
    28,867.49/43,302.44 = 9,145.61/x
  3. Step 3: Cross multiply
    28,867.49x = 43,302.44 × 9,145.61
  4. Step 4: Simplify right side
    28,867.49x = 396,027,034.64
  5. Step 5: Solve for x
    x = 396,027,034.64/28,867.49
  6. Step 6: Final answer
    x = 13,718.79

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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.