Home / 20,795.04-31,192.56-7,647.53

Finding the Fourth Proportional to 20,795.04, 31,192.56 and 7,647.53

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Solution

The fourth proportional to 20,795.04, 31,192.56 and 7,647.53 is: 11,471.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.04 : 31,192.56 = 7,647.53 : x
  2. Step 2: Convert to fraction form
    20,795.04/31,192.56 = 7,647.53/x
  3. Step 3: Cross multiply
    20,795.04x = 31,192.56 × 7,647.53
  4. Step 4: Simplify right side
    20,795.04x = 238,545,882.41
  5. Step 5: Solve for x
    x = 238,545,882.41/20,795.04
  6. Step 6: Final answer
    x = 11,471.29

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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.