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Finding the Fourth Proportional to 29,299.78, 43,942.71 and 12,650.71

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Solution

The fourth proportional to 29,299.78, 43,942.71 and 12,650.71 is: 18,973.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,299.78 : 43,942.71 = 12,650.71 : x
  2. Step 2: Convert to fraction form
    29,299.78/43,942.71 = 12,650.71/x
  3. Step 3: Cross multiply
    29,299.78x = 43,942.71 × 12,650.71
  4. Step 4: Simplify right side
    29,299.78x = 555,906,480.82
  5. Step 5: Solve for x
    x = 555,906,480.82/29,299.78
  6. Step 6: Final answer
    x = 18,973.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.