Home / 30,608.53-45,937.40-15,821.78

Finding the Fourth Proportional to 30,608.53, 45,937.40 and 15,821.78

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Solution

The fourth proportional to 30,608.53, 45,937.40 and 15,821.78 is: 23,745.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,608.53 : 45,937.40 = 15,821.78 : x
  2. Step 2: Convert to fraction form
    30,608.53/45,937.40 = 15,821.78/x
  3. Step 3: Cross multiply
    30,608.53x = 45,937.40 × 15,821.78
  4. Step 4: Simplify right side
    30,608.53x = 726,811,127.78
  5. Step 5: Solve for x
    x = 726,811,127.78/30,608.53
  6. Step 6: Final answer
    x = 23,745.38

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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.