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Finding the Fourth Proportional to 29,087.31, 43,630.98 and 8,310.81

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Solution

The fourth proportional to 29,087.31, 43,630.98 and 8,310.81 is: 12,466.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,087.31 : 43,630.98 = 8,310.81 : x
  2. Step 2: Convert to fraction form
    29,087.31/43,630.98 = 8,310.81/x
  3. Step 3: Cross multiply
    29,087.31x = 43,630.98 × 8,310.81
  4. Step 4: Simplify right side
    29,087.31x = 362,608,784.89
  5. Step 5: Solve for x
    x = 362,608,784.89/29,087.31
  6. Step 6: Final answer
    x = 12,466.22

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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.