Home / 39,272.57-58,914.32-12,619.35

Finding the Fourth Proportional to 39,272.57, 58,914.32 and 12,619.35

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Solution

The fourth proportional to 39,272.57, 58,914.32 and 12,619.35 is: 18,930.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,272.57 : 58,914.32 = 12,619.35 : x
  2. Step 2: Convert to fraction form
    39,272.57/58,914.32 = 12,619.35/x
  3. Step 3: Cross multiply
    39,272.57x = 58,914.32 × 12,619.35
  4. Step 4: Simplify right side
    39,272.57x = 743,460,361.00
  5. Step 5: Solve for x
    x = 743,460,361.00/39,272.57
  6. Step 6: Final answer
    x = 18,930.78

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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.