Home / 43,674.17-65,511.20-13,688.61

Finding the Fourth Proportional to 43,674.17, 65,511.20 and 13,688.61

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Solution

The fourth proportional to 43,674.17, 65,511.20 and 13,688.61 is: 20,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,674.17 : 65,511.20 = 13,688.61 : x
  2. Step 2: Convert to fraction form
    43,674.17/65,511.20 = 13,688.61/x
  3. Step 3: Cross multiply
    43,674.17x = 65,511.20 × 13,688.61
  4. Step 4: Simplify right side
    43,674.17x = 896,757,198.99
  5. Step 5: Solve for x
    x = 896,757,198.99/43,674.17
  6. Step 6: Final answer
    x = 20,532.90

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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.