Home / 41,138.96-61,701.60-13,436.96

Finding the Fourth Proportional to 41,138.96, 61,701.60 and 13,436.96

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Solution

The fourth proportional to 41,138.96, 61,701.60 and 13,436.96 is: 20,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,138.96 : 61,701.60 = 13,436.96 : x
  2. Step 2: Convert to fraction form
    41,138.96/61,701.60 = 13,436.96/x
  3. Step 3: Cross multiply
    41,138.96x = 61,701.60 × 13,436.96
  4. Step 4: Simplify right side
    41,138.96x = 829,081,931.14
  5. Step 5: Solve for x
    x = 829,081,931.14/41,138.96
  6. Step 6: Final answer
    x = 20,153.21

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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.