Home / 41,020.57-61,530.89-13,318.57

Finding the Fourth Proportional to 41,020.57, 61,530.89 and 13,318.57

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Solution

The fourth proportional to 41,020.57, 61,530.89 and 13,318.57 is: 19,977.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,020.57 : 61,530.89 = 13,318.57 : x
  2. Step 2: Convert to fraction form
    41,020.57/61,530.89 = 13,318.57/x
  3. Step 3: Cross multiply
    41,020.57x = 61,530.89 × 13,318.57
  4. Step 4: Simplify right side
    41,020.57x = 819,503,465.63
  5. Step 5: Solve for x
    x = 819,503,465.63/41,020.57
  6. Step 6: Final answer
    x = 19,977.87

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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.