Home / 30,081.60-41,512.32-18,901.44

Finding the Fourth Proportional to 30,081.60, 41,512.32 and 18,901.44

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Solution

The fourth proportional to 30,081.60, 41,512.32 and 18,901.44 is: 26,083.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,081.60 : 41,512.32 = 18,901.44 : x
  2. Step 2: Convert to fraction form
    30,081.60/41,512.32 = 18,901.44/x
  3. Step 3: Cross multiply
    30,081.60x = 41,512.32 × 18,901.44
  4. Step 4: Simplify right side
    30,081.60x = 784,642,625.74
  5. Step 5: Solve for x
    x = 784,642,625.74/30,081.60
  6. Step 6: Final answer
    x = 26,083.81

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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.