Home / 40,670.09-61,007.31-12,609.53

Finding the Fourth Proportional to 40,670.09, 61,007.31 and 12,609.53

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Solution

The fourth proportional to 40,670.09, 61,007.31 and 12,609.53 is: 18,914.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,670.09 : 61,007.31 = 12,609.53 : x
  2. Step 2: Convert to fraction form
    40,670.09/61,007.31 = 12,609.53/x
  3. Step 3: Cross multiply
    40,670.09x = 61,007.31 × 12,609.53
  4. Step 4: Simplify right side
    40,670.09x = 769,273,505.66
  5. Step 5: Solve for x
    x = 769,273,505.66/40,670.09
  6. Step 6: Final answer
    x = 18,914.97

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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.