Home / 29,318.32-43,904.56-20,512

Finding the Fourth Proportional to 29,318.32, 43,904.56 and 20,512

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Solution

The fourth proportional to 29,318.32, 43,904.56 and 20,512 is: 30,716.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,318.32 : 43,904.56 = 20,512 : x
  2. Step 2: Convert to fraction form
    29,318.32/43,904.56 = 20,512/x
  3. Step 3: Cross multiply
    29,318.32x = 43,904.56 × 20,512
  4. Step 4: Simplify right side
    29,318.32x = 900,570,334.72
  5. Step 5: Solve for x
    x = 900,570,334.72/29,318.32
  6. Step 6: Final answer
    x = 30,716.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.