Home / 43,419.84-65,127.36-12,253.44

Finding the Fourth Proportional to 43,419.84, 65,127.36 and 12,253.44

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Solution

The fourth proportional to 43,419.84, 65,127.36 and 12,253.44 is: 18,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,419.84 : 65,127.36 = 12,253.44 : x
  2. Step 2: Convert to fraction form
    43,419.84/65,127.36 = 12,253.44/x
  3. Step 3: Cross multiply
    43,419.84x = 65,127.36 × 12,253.44
  4. Step 4: Simplify right side
    43,419.84x = 798,034,198.12
  5. Step 5: Solve for x
    x = 798,034,198.12/43,419.84
  6. Step 6: Final answer
    x = 18,379.48

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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.