Home / 33,120.48-45,705.36-18,216.48

Finding the Fourth Proportional to 33,120.48, 45,705.36 and 18,216.48

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Solution

The fourth proportional to 33,120.48, 45,705.36 and 18,216.48 is: 25,138.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,120.48 : 45,705.36 = 18,216.48 : x
  2. Step 2: Convert to fraction form
    33,120.48/45,705.36 = 18,216.48/x
  3. Step 3: Cross multiply
    33,120.48x = 45,705.36 × 18,216.48
  4. Step 4: Simplify right side
    33,120.48x = 832,590,776.33
  5. Step 5: Solve for x
    x = 832,590,776.33/33,120.48
  6. Step 6: Final answer
    x = 25,138.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.