Home / 33,338.89-45,933.82-21,988.36

Finding the Fourth Proportional to 33,338.89, 45,933.82 and 21,988.36

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Solution

The fourth proportional to 33,338.89, 45,933.82 and 21,988.36 is: 30,295.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,338.89 : 45,933.82 = 21,988.36 : x
  2. Step 2: Convert to fraction form
    33,338.89/45,933.82 = 21,988.36/x
  3. Step 3: Cross multiply
    33,338.89x = 45,933.82 × 21,988.36
  4. Step 4: Simplify right side
    33,338.89x = 1,010,009,370.34
  5. Step 5: Solve for x
    x = 1,010,009,370.34/33,338.89
  6. Step 6: Final answer
    x = 30,295.23

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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.