Home / 33,131.60-45,724.20-18,987.92

Finding the Fourth Proportional to 33,131.60, 45,724.20 and 18,987.92

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Solution

The fourth proportional to 33,131.60, 45,724.20 and 18,987.92 is: 26,204.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,131.60 : 45,724.20 = 18,987.92 : x
  2. Step 2: Convert to fraction form
    33,131.60/45,724.20 = 18,987.92/x
  3. Step 3: Cross multiply
    33,131.60x = 45,724.20 × 18,987.92
  4. Step 4: Simplify right side
    33,131.60x = 868,207,451.66
  5. Step 5: Solve for x
    x = 868,207,451.66/33,131.60
  6. Step 6: Final answer
    x = 26,204.82

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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.