Home / 27,976.45-38,594.46-16,639.57

Finding the Fourth Proportional to 27,976.45, 38,594.46 and 16,639.57

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Solution

The fourth proportional to 27,976.45, 38,594.46 and 16,639.57 is: 22,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,976.45 : 38,594.46 = 16,639.57 : x
  2. Step 2: Convert to fraction form
    27,976.45/38,594.46 = 16,639.57/x
  3. Step 3: Cross multiply
    27,976.45x = 38,594.46 × 16,639.57
  4. Step 4: Simplify right side
    27,976.45x = 642,195,218.78
  5. Step 5: Solve for x
    x = 642,195,218.78/27,976.45
  6. Step 6: Final answer
    x = 22,954.85

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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.