Home / 28,896.60-43,334.10-20,105.40

Finding the Fourth Proportional to 28,896.60, 43,334.10 and 20,105.40

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Solution

The fourth proportional to 28,896.60, 43,334.10 and 20,105.40 is: 30,150.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896.60 : 43,334.10 = 20,105.40 : x
  2. Step 2: Convert to fraction form
    28,896.60/43,334.10 = 20,105.40/x
  3. Step 3: Cross multiply
    28,896.60x = 43,334.10 × 20,105.40
  4. Step 4: Simplify right side
    28,896.60x = 871,249,414.14
  5. Step 5: Solve for x
    x = 871,249,414.14/28,896.60
  6. Step 6: Final answer
    x = 30,150.59

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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.