Home / 16,639.43-22,930.84-11,915.51

Finding the Fourth Proportional to 16,639.43, 22,930.84 and 11,915.51

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Solution

The fourth proportional to 16,639.43, 22,930.84 and 11,915.51 is: 16,420.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,639.43 : 22,930.84 = 11,915.51 : x
  2. Step 2: Convert to fraction form
    16,639.43/22,930.84 = 11,915.51/x
  3. Step 3: Cross multiply
    16,639.43x = 22,930.84 × 11,915.51
  4. Step 4: Simplify right side
    16,639.43x = 273,232,653.33
  5. Step 5: Solve for x
    x = 273,232,653.33/16,639.43
  6. Step 6: Final answer
    x = 16,420.79

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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.