Home / 22,787.61-31,453.50-13,229.64

Finding the Fourth Proportional to 22,787.61, 31,453.50 and 13,229.64

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Solution

The fourth proportional to 22,787.61, 31,453.50 and 13,229.64 is: 18,260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,787.61 : 31,453.50 = 13,229.64 : x
  2. Step 2: Convert to fraction form
    22,787.61/31,453.50 = 13,229.64/x
  3. Step 3: Cross multiply
    22,787.61x = 31,453.50 × 13,229.64
  4. Step 4: Simplify right side
    22,787.61x = 416,118,481.74
  5. Step 5: Solve for x
    x = 416,118,481.74/22,787.61
  6. Step 6: Final answer
    x = 18,260.73

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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.