Home / 43,600.44-65,412-12,438.12

Finding the Fourth Proportional to 43,600.44, 65,412 and 12,438.12

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Solution

The fourth proportional to 43,600.44, 65,412 and 12,438.12 is: 18,660.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,600.44 : 65,412 = 12,438.12 : x
  2. Step 2: Convert to fraction form
    43,600.44/65,412 = 12,438.12/x
  3. Step 3: Cross multiply
    43,600.44x = 65,412 × 12,438.12
  4. Step 4: Simplify right side
    43,600.44x = 813,602,305.44
  5. Step 5: Solve for x
    x = 813,602,305.44/43,600.44
  6. Step 6: Final answer
    x = 18,660.42

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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.