Home / 22,412.88-30,928.62-12,339.38

Finding the Fourth Proportional to 22,412.88, 30,928.62 and 12,339.38

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Solution

The fourth proportional to 22,412.88, 30,928.62 and 12,339.38 is: 17,027.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,412.88 : 30,928.62 = 12,339.38 : x
  2. Step 2: Convert to fraction form
    22,412.88/30,928.62 = 12,339.38/x
  3. Step 3: Cross multiply
    22,412.88x = 30,928.62 × 12,339.38
  4. Step 4: Simplify right side
    22,412.88x = 381,639,995.06
  5. Step 5: Solve for x
    x = 381,639,995.06/22,412.88
  6. Step 6: Final answer
    x = 17,027.71

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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.