Home / 36,321.62-50,124.31-21,981.28

Finding the Fourth Proportional to 36,321.62, 50,124.31 and 21,981.28

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Solution

The fourth proportional to 36,321.62, 50,124.31 and 21,981.28 is: 30,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,321.62 : 50,124.31 = 21,981.28 : x
  2. Step 2: Convert to fraction form
    36,321.62/50,124.31 = 21,981.28/x
  3. Step 3: Cross multiply
    36,321.62x = 50,124.31 × 21,981.28
  4. Step 4: Simplify right side
    36,321.62x = 1,101,796,530.28
  5. Step 5: Solve for x
    x = 1,101,796,530.28/36,321.62
  6. Step 6: Final answer
    x = 30,334.45

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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.