Home / 33,138.12-49,705.56-12,360

Finding the Fourth Proportional to 33,138.12, 49,705.56 and 12,360

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Solution

The fourth proportional to 33,138.12, 49,705.56 and 12,360 is: 18,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.12 : 49,705.56 = 12,360 : x
  2. Step 2: Convert to fraction form
    33,138.12/49,705.56 = 12,360/x
  3. Step 3: Cross multiply
    33,138.12x = 49,705.56 × 12,360
  4. Step 4: Simplify right side
    33,138.12x = 614,360,721.60
  5. Step 5: Solve for x
    x = 614,360,721.60/33,138.12
  6. Step 6: Final answer
    x = 18,539.40

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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.