Home / 29,989.20-44,947.80-20,629.20

Finding the Fourth Proportional to 29,989.20, 44,947.80 and 20,629.20

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Solution

The fourth proportional to 29,989.20, 44,947.80 and 20,629.20 is: 30,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,989.20 : 44,947.80 = 20,629.20 : x
  2. Step 2: Convert to fraction form
    29,989.20/44,947.80 = 20,629.20/x
  3. Step 3: Cross multiply
    29,989.20x = 44,947.80 × 20,629.20
  4. Step 4: Simplify right side
    29,989.20x = 927,237,155.76
  5. Step 5: Solve for x
    x = 927,237,155.76/29,989.20
  6. Step 6: Final answer
    x = 30,919.04

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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.