Home / 33,138.28-45,725.52-18,988.48

Finding the Fourth Proportional to 33,138.28, 45,725.52 and 18,988.48

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Solution

The fourth proportional to 33,138.28, 45,725.52 and 18,988.48 is: 26,201.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.28 : 45,725.52 = 18,988.48 : x
  2. Step 2: Convert to fraction form
    33,138.28/45,725.52 = 18,988.48/x
  3. Step 3: Cross multiply
    33,138.28x = 45,725.52 × 18,988.48
  4. Step 4: Simplify right side
    33,138.28x = 868,258,122.01
  5. Step 5: Solve for x
    x = 868,258,122.01/33,138.28
  6. Step 6: Final answer
    x = 26,201.06

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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.