Home / 43,930.49-65,885.85-20,215.29

Finding the Fourth Proportional to 43,930.49, 65,885.85 and 20,215.29

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Solution

The fourth proportional to 43,930.49, 65,885.85 and 20,215.29 is: 30,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,930.49 : 65,885.85 = 20,215.29 : x
  2. Step 2: Convert to fraction form
    43,930.49/65,885.85 = 20,215.29/x
  3. Step 3: Cross multiply
    43,930.49x = 65,885.85 × 20,215.29
  4. Step 4: Simplify right side
    43,930.49x = 1,331,901,564.65
  5. Step 5: Solve for x
    x = 1,331,901,564.65/43,930.49
  6. Step 6: Final answer
    x = 30,318.39

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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.