Home / 33,220.82-45,818.80-21,285.27

Finding the Fourth Proportional to 33,220.82, 45,818.80 and 21,285.27

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Solution

The fourth proportional to 33,220.82, 45,818.80 and 21,285.27 is: 29,357.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,220.82 : 45,818.80 = 21,285.27 : x
  2. Step 2: Convert to fraction form
    33,220.82/45,818.80 = 21,285.27/x
  3. Step 3: Cross multiply
    33,220.82x = 45,818.80 × 21,285.27
  4. Step 4: Simplify right side
    33,220.82x = 975,265,529.08
  5. Step 5: Solve for x
    x = 975,265,529.08/33,220.82
  6. Step 6: Final answer
    x = 29,357.06

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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.