Home / 33,135.54-45,725.61-18,989.70

Finding the Fourth Proportional to 33,135.54, 45,725.61 and 18,989.70

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Solution

The fourth proportional to 33,135.54, 45,725.61 and 18,989.70 is: 26,204.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,135.54 : 45,725.61 = 18,989.70 : x
  2. Step 2: Convert to fraction form
    33,135.54/45,725.61 = 18,989.70/x
  3. Step 3: Cross multiply
    33,135.54x = 45,725.61 × 18,989.70
  4. Step 4: Simplify right side
    33,135.54x = 868,315,616.22
  5. Step 5: Solve for x
    x = 868,315,616.22/33,135.54
  6. Step 6: Final answer
    x = 26,204.96

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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.