Home / 43,902.28-65,868.20-13,921.41

Finding the Fourth Proportional to 43,902.28, 65,868.20 and 13,921.41

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Solution

The fourth proportional to 43,902.28, 65,868.20 and 13,921.41 is: 20,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,902.28 : 65,868.20 = 13,921.41 : x
  2. Step 2: Convert to fraction form
    43,902.28/65,868.20 = 13,921.41/x
  3. Step 3: Cross multiply
    43,902.28x = 65,868.20 × 13,921.41
  4. Step 4: Simplify right side
    43,902.28x = 916,978,218.16
  5. Step 5: Solve for x
    x = 916,978,218.16/43,902.28
  6. Step 6: Final answer
    x = 20,886.80

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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.