Home / 33,281.82-45,917.15-21,351.60

Finding the Fourth Proportional to 33,281.82, 45,917.15 and 21,351.60

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Solution

The fourth proportional to 33,281.82, 45,917.15 and 21,351.60 is: 29,457.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,281.82 : 45,917.15 = 21,351.60 : x
  2. Step 2: Convert to fraction form
    33,281.82/45,917.15 = 21,351.60/x
  3. Step 3: Cross multiply
    33,281.82x = 45,917.15 × 21,351.60
  4. Step 4: Simplify right side
    33,281.82x = 980,404,513.18
  5. Step 5: Solve for x
    x = 980,404,513.18/33,281.82
  6. Step 6: Final answer
    x = 29,457.66

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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.