Home / 33,321.68-45,985.14-18,215.35

Finding the Fourth Proportional to 33,321.68, 45,985.14 and 18,215.35

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Solution

The fourth proportional to 33,321.68, 45,985.14 and 18,215.35 is: 25,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,321.68 : 45,985.14 = 18,215.35 : x
  2. Step 2: Convert to fraction form
    33,321.68/45,985.14 = 18,215.35/x
  3. Step 3: Cross multiply
    33,321.68x = 45,985.14 × 18,215.35
  4. Step 4: Simplify right side
    33,321.68x = 837,635,189.97
  5. Step 5: Solve for x
    x = 837,635,189.97/33,321.68
  6. Step 6: Final answer
    x = 25,137.85

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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.