Home / 34,989.20-48,285.41-20,649.36

Finding the Fourth Proportional to 34,989.20, 48,285.41 and 20,649.36

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Solution

The fourth proportional to 34,989.20, 48,285.41 and 20,649.36 is: 28,496.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,989.20 : 48,285.41 = 20,649.36 : x
  2. Step 2: Convert to fraction form
    34,989.20/48,285.41 = 20,649.36/x
  3. Step 3: Cross multiply
    34,989.20x = 48,285.41 × 20,649.36
  4. Step 4: Simplify right side
    34,989.20x = 997,062,813.84
  5. Step 5: Solve for x
    x = 997,062,813.84/34,989.20
  6. Step 6: Final answer
    x = 28,496.30

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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.