Home / 20,795.40-31,193.46-7,469.28

Finding the Fourth Proportional to 20,795.40, 31,193.46 and 7,469.28

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Solution

The fourth proportional to 20,795.40, 31,193.46 and 7,469.28 is: 11,204.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.40 : 31,193.46 = 7,469.28 : x
  2. Step 2: Convert to fraction form
    20,795.40/31,193.46 = 7,469.28/x
  3. Step 3: Cross multiply
    20,795.40x = 31,193.46 × 7,469.28
  4. Step 4: Simplify right side
    20,795.40x = 232,992,686.91
  5. Step 5: Solve for x
    x = 232,992,686.91/20,795.40
  6. Step 6: Final answer
    x = 11,204.05

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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.