Home / 13,821.31-20,738.04-5,057.53

Finding the Fourth Proportional to 13,821.31, 20,738.04 and 5,057.53

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Solution

The fourth proportional to 13,821.31, 20,738.04 and 5,057.53 is: 7,588.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.31 : 20,738.04 = 5,057.53 : x
  2. Step 2: Convert to fraction form
    13,821.31/20,738.04 = 5,057.53/x
  3. Step 3: Cross multiply
    13,821.31x = 20,738.04 × 5,057.53
  4. Step 4: Simplify right side
    13,821.31x = 104,883,259.44
  5. Step 5: Solve for x
    x = 104,883,259.44/13,821.31
  6. Step 6: Final answer
    x = 7,588.52

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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.