Home / 30,155.80-41,629.28-20,101

Finding the Fourth Proportional to 30,155.80, 41,629.28 and 20,101

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Solution

The fourth proportional to 30,155.80, 41,629.28 and 20,101 is: 27,748.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,155.80 : 41,629.28 = 20,101 : x
  2. Step 2: Convert to fraction form
    30,155.80/41,629.28 = 20,101/x
  3. Step 3: Cross multiply
    30,155.80x = 41,629.28 × 20,101
  4. Step 4: Simplify right side
    30,155.80x = 836,790,157.28
  5. Step 5: Solve for x
    x = 836,790,157.28/30,155.80
  6. Step 6: Final answer
    x = 27,748.90

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