Home / 28,027.84-38,694.26-18,609.28

Finding the Fourth Proportional to 28,027.84, 38,694.26 and 18,609.28

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Solution

The fourth proportional to 28,027.84, 38,694.26 and 18,609.28 is: 25,691.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,027.84 : 38,694.26 = 18,609.28 : x
  2. Step 2: Convert to fraction form
    28,027.84/38,694.26 = 18,609.28/x
  3. Step 3: Cross multiply
    28,027.84x = 38,694.26 × 18,609.28
  4. Step 4: Simplify right side
    28,027.84x = 720,072,318.73
  5. Step 5: Solve for x
    x = 720,072,318.73/28,027.84
  6. Step 6: Final answer
    x = 25,691.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.