Home / 20,225.97-30,336.12-10,365.30

Finding the Fourth Proportional to 20,225.97, 30,336.12 and 10,365.30

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Solution

The fourth proportional to 20,225.97, 30,336.12 and 10,365.30 is: 15,546.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.97 : 30,336.12 = 10,365.30 : x
  2. Step 2: Convert to fraction form
    20,225.97/30,336.12 = 10,365.30/x
  3. Step 3: Cross multiply
    20,225.97x = 30,336.12 × 10,365.30
  4. Step 4: Simplify right side
    20,225.97x = 314,442,984.64
  5. Step 5: Solve for x
    x = 314,442,984.64/20,225.97
  6. Step 6: Final answer
    x = 15,546.50

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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.