Home / 29,121.12-43,688.16-8,343

Finding the Fourth Proportional to 29,121.12, 43,688.16 and 8,343

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Solution

The fourth proportional to 29,121.12, 43,688.16 and 8,343 is: 12,516.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,121.12 : 43,688.16 = 8,343 : x
  2. Step 2: Convert to fraction form
    29,121.12/43,688.16 = 8,343/x
  3. Step 3: Cross multiply
    29,121.12x = 43,688.16 × 8,343
  4. Step 4: Simplify right side
    29,121.12x = 364,490,318.88
  5. Step 5: Solve for x
    x = 364,490,318.88/29,121.12
  6. Step 6: Final answer
    x = 12,516.36

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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.