Home / 33,328.80-45,993.61-18,221.45

Finding the Fourth Proportional to 33,328.80, 45,993.61 and 18,221.45

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Solution

The fourth proportional to 33,328.80, 45,993.61 and 18,221.45 is: 25,145.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,328.80 : 45,993.61 = 18,221.45 : x
  2. Step 2: Convert to fraction form
    33,328.80/45,993.61 = 18,221.45/x
  3. Step 3: Cross multiply
    33,328.80x = 45,993.61 × 18,221.45
  4. Step 4: Simplify right side
    33,328.80x = 838,070,264.93
  5. Step 5: Solve for x
    x = 838,070,264.93/33,328.80
  6. Step 6: Final answer
    x = 25,145.53

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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.