Home / 22,729.33-31,366.39-12,657.90

Finding the Fourth Proportional to 22,729.33, 31,366.39 and 12,657.90

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Solution

The fourth proportional to 22,729.33, 31,366.39 and 12,657.90 is: 17,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,729.33 : 31,366.39 = 12,657.90 : x
  2. Step 2: Convert to fraction form
    22,729.33/31,366.39 = 12,657.90/x
  3. Step 3: Cross multiply
    22,729.33x = 31,366.39 × 12,657.90
  4. Step 4: Simplify right side
    22,729.33x = 397,032,627.98
  5. Step 5: Solve for x
    x = 397,032,627.98/22,729.33
  6. Step 6: Final answer
    x = 17,467.85

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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.