Home / 43,330.63-64,998.27-12,168.31

Finding the Fourth Proportional to 43,330.63, 64,998.27 and 12,168.31

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Solution

The fourth proportional to 43,330.63, 64,998.27 and 12,168.31 is: 18,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,330.63 : 64,998.27 = 12,168.31 : x
  2. Step 2: Convert to fraction form
    43,330.63/64,998.27 = 12,168.31/x
  3. Step 3: Cross multiply
    43,330.63x = 64,998.27 × 12,168.31
  4. Step 4: Simplify right side
    43,330.63x = 790,919,037.98
  5. Step 5: Solve for x
    x = 790,919,037.98/43,330.63
  6. Step 6: Final answer
    x = 18,253.12

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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.