Home / 22,382.67-30,890.72-12,825.66

Finding the Fourth Proportional to 22,382.67, 30,890.72 and 12,825.66

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Solution

The fourth proportional to 22,382.67, 30,890.72 and 12,825.66 is: 17,700.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,382.67 : 30,890.72 = 12,825.66 : x
  2. Step 2: Convert to fraction form
    22,382.67/30,890.72 = 12,825.66/x
  3. Step 3: Cross multiply
    22,382.67x = 30,890.72 × 12,825.66
  4. Step 4: Simplify right side
    22,382.67x = 396,193,740.00
  5. Step 5: Solve for x
    x = 396,193,740.00/22,382.67
  6. Step 6: Final answer
    x = 17,700.91

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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.