Home / 22,336.56-30,815.64-15,620.04

Finding the Fourth Proportional to 22,336.56, 30,815.64 and 15,620.04

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Solution

The fourth proportional to 22,336.56, 30,815.64 and 15,620.04 is: 21,549.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,336.56 : 30,815.64 = 15,620.04 : x
  2. Step 2: Convert to fraction form
    22,336.56/30,815.64 = 15,620.04/x
  3. Step 3: Cross multiply
    22,336.56x = 30,815.64 × 15,620.04
  4. Step 4: Simplify right side
    22,336.56x = 481,341,529.43
  5. Step 5: Solve for x
    x = 481,341,529.43/22,336.56
  6. Step 6: Final answer
    x = 21,549.49

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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.