Home / 33,006.81-45,537.45-21,682.40

Finding the Fourth Proportional to 33,006.81, 45,537.45 and 21,682.40

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Solution

The fourth proportional to 33,006.81, 45,537.45 and 21,682.40 is: 29,913.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,006.81 : 45,537.45 = 21,682.40 : x
  2. Step 2: Convert to fraction form
    33,006.81/45,537.45 = 21,682.40/x
  3. Step 3: Cross multiply
    33,006.81x = 45,537.45 × 21,682.40
  4. Step 4: Simplify right side
    33,006.81x = 987,361,205.88
  5. Step 5: Solve for x
    x = 987,361,205.88/33,006.81
  6. Step 6: Final answer
    x = 29,913.86

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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.