Home / 33,140.68-45,729.30-18,991.24

Finding the Fourth Proportional to 33,140.68, 45,729.30 and 18,991.24

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Solution

The fourth proportional to 33,140.68, 45,729.30 and 18,991.24 is: 26,205.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,140.68 : 45,729.30 = 18,991.24 : x
  2. Step 2: Convert to fraction form
    33,140.68/45,729.30 = 18,991.24/x
  3. Step 3: Cross multiply
    33,140.68x = 45,729.30 × 18,991.24
  4. Step 4: Simplify right side
    33,140.68x = 868,456,111.33
  5. Step 5: Solve for x
    x = 868,456,111.33/33,140.68
  6. Step 6: Final answer
    x = 26,205.14

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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.