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Finding the Fourth Proportional to 29,120.16, 43,687.08 and 8,343.12

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Solution

The fourth proportional to 29,120.16, 43,687.08 and 8,343.12 is: 12,516.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,120.16 : 43,687.08 = 8,343.12 : x
  2. Step 2: Convert to fraction form
    29,120.16/43,687.08 = 8,343.12/x
  3. Step 3: Cross multiply
    29,120.16x = 43,687.08 × 8,343.12
  4. Step 4: Simplify right side
    29,120.16x = 364,486,550.89
  5. Step 5: Solve for x
    x = 364,486,550.89/29,120.16
  6. Step 6: Final answer
    x = 12,516.64

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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.