Home / 33,220.53-45,832.83-21,290.44

Finding the Fourth Proportional to 33,220.53, 45,832.83 and 21,290.44

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Solution

The fourth proportional to 33,220.53, 45,832.83 and 21,290.44 is: 29,373.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,220.53 : 45,832.83 = 21,290.44 : x
  2. Step 2: Convert to fraction form
    33,220.53/45,832.83 = 21,290.44/x
  3. Step 3: Cross multiply
    33,220.53x = 45,832.83 × 21,290.44
  4. Step 4: Simplify right side
    33,220.53x = 975,801,117.15
  5. Step 5: Solve for x
    x = 975,801,117.15/33,220.53
  6. Step 6: Final answer
    x = 29,373.44

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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.