Home / 33,133.54-45,722.85-18,987.70

Finding the Fourth Proportional to 33,133.54, 45,722.85 and 18,987.70

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Solution

The fourth proportional to 33,133.54, 45,722.85 and 18,987.70 is: 26,202.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,133.54 : 45,722.85 = 18,987.70 : x
  2. Step 2: Convert to fraction form
    33,133.54/45,722.85 = 18,987.70/x
  3. Step 3: Cross multiply
    33,133.54x = 45,722.85 × 18,987.70
  4. Step 4: Simplify right side
    33,133.54x = 868,171,758.95
  5. Step 5: Solve for x
    x = 868,171,758.95/33,133.54
  6. Step 6: Final answer
    x = 26,202.20

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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.