Home / 40,683.51-61,028.34-12,606.40

Finding the Fourth Proportional to 40,683.51, 61,028.34 and 12,606.40

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Solution

The fourth proportional to 40,683.51, 61,028.34 and 12,606.40 is: 18,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,683.51 : 61,028.34 = 12,606.40 : x
  2. Step 2: Convert to fraction form
    40,683.51/61,028.34 = 12,606.40/x
  3. Step 3: Cross multiply
    40,683.51x = 61,028.34 × 12,606.40
  4. Step 4: Simplify right side
    40,683.51x = 769,347,481.29
  5. Step 5: Solve for x
    x = 769,347,481.29/40,683.51
  6. Step 6: Final answer
    x = 18,910.55

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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.