Home / 40,954.09-61,431.09-12,876.61

Finding the Fourth Proportional to 40,954.09, 61,431.09 and 12,876.61

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Solution

The fourth proportional to 40,954.09, 61,431.09 and 12,876.61 is: 19,314.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,954.09 : 61,431.09 = 12,876.61 : x
  2. Step 2: Convert to fraction form
    40,954.09/61,431.09 = 12,876.61/x
  3. Step 3: Cross multiply
    40,954.09x = 61,431.09 × 12,876.61
  4. Step 4: Simplify right side
    40,954.09x = 791,024,187.80
  5. Step 5: Solve for x
    x = 791,024,187.80/40,954.09
  6. Step 6: Final answer
    x = 19,314.90

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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.