Home / 22,949.12-31,670.12-12,876.98

Finding the Fourth Proportional to 22,949.12, 31,670.12 and 12,876.98

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Solution

The fourth proportional to 22,949.12, 31,670.12 and 12,876.98 is: 17,770.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,949.12 : 31,670.12 = 12,876.98 : x
  2. Step 2: Convert to fraction form
    22,949.12/31,670.12 = 12,876.98/x
  3. Step 3: Cross multiply
    22,949.12x = 31,670.12 × 12,876.98
  4. Step 4: Simplify right side
    22,949.12x = 407,815,375.68
  5. Step 5: Solve for x
    x = 407,815,375.68/22,949.12
  6. Step 6: Final answer
    x = 17,770.41

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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.