Home / 33,013.18-45,513.48-21,662.65

Finding the Fourth Proportional to 33,013.18, 45,513.48 and 21,662.65

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Solution

The fourth proportional to 33,013.18, 45,513.48 and 21,662.65 is: 29,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,013.18 : 45,513.48 = 21,662.65 : x
  2. Step 2: Convert to fraction form
    33,013.18/45,513.48 = 21,662.65/x
  3. Step 3: Cross multiply
    33,013.18x = 45,513.48 × 21,662.65
  4. Step 4: Simplify right side
    33,013.18x = 985,942,587.52
  5. Step 5: Solve for x
    x = 985,942,587.52/33,013.18
  6. Step 6: Final answer
    x = 29,865.12

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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.