Home / 33,105.65-45,675.29-20,537.69

Finding the Fourth Proportional to 33,105.65, 45,675.29 and 20,537.69

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Solution

The fourth proportional to 33,105.65, 45,675.29 and 20,537.69 is: 28,335.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,105.65 : 45,675.29 = 20,537.69 : x
  2. Step 2: Convert to fraction form
    33,105.65/45,675.29 = 20,537.69/x
  3. Step 3: Cross multiply
    33,105.65x = 45,675.29 × 20,537.69
  4. Step 4: Simplify right side
    33,105.65x = 938,064,769.65
  5. Step 5: Solve for x
    x = 938,064,769.65/33,105.65
  6. Step 6: Final answer
    x = 28,335.49

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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.