Home / 30,372.14-45,563.38-10,380.53

Finding the Fourth Proportional to 30,372.14, 45,563.38 and 10,380.53

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Solution

The fourth proportional to 30,372.14, 45,563.38 and 10,380.53 is: 15,572.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.14 : 45,563.38 = 10,380.53 : x
  2. Step 2: Convert to fraction form
    30,372.14/45,563.38 = 10,380.53/x
  3. Step 3: Cross multiply
    30,372.14x = 45,563.38 × 10,380.53
  4. Step 4: Simplify right side
    30,372.14x = 472,972,120.95
  5. Step 5: Solve for x
    x = 472,972,120.95/30,372.14
  6. Step 6: Final answer
    x = 15,572.56

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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.