Home / 35,163.20-48,517.06-20,815.82

Finding the Fourth Proportional to 35,163.20, 48,517.06 and 20,815.82

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Solution

The fourth proportional to 35,163.20, 48,517.06 and 20,815.82 is: 28,721.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,163.20 : 48,517.06 = 20,815.82 : x
  2. Step 2: Convert to fraction form
    35,163.20/48,517.06 = 20,815.82/x
  3. Step 3: Cross multiply
    35,163.20x = 48,517.06 × 20,815.82
  4. Step 4: Simplify right side
    35,163.20x = 1,009,922,387.89
  5. Step 5: Solve for x
    x = 1,009,922,387.89/35,163.20
  6. Step 6: Final answer
    x = 28,721.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.