Home / 35,340.21-48,761.60-20,998.95

Finding the Fourth Proportional to 35,340.21, 48,761.60 and 20,998.95

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Solution

The fourth proportional to 35,340.21, 48,761.60 and 20,998.95 is: 28,973.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,340.21 : 48,761.60 = 20,998.95 : x
  2. Step 2: Convert to fraction form
    35,340.21/48,761.60 = 20,998.95/x
  3. Step 3: Cross multiply
    35,340.21x = 48,761.60 × 20,998.95
  4. Step 4: Simplify right side
    35,340.21x = 1,023,942,295.33
  5. Step 5: Solve for x
    x = 1,023,942,295.33/35,340.21
  6. Step 6: Final answer
    x = 28,973.86

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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.