Home / 43,902.68-65,868.80-13,921.83

Finding the Fourth Proportional to 43,902.68, 65,868.80 and 13,921.83

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Solution

The fourth proportional to 43,902.68, 65,868.80 and 13,921.83 is: 20,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,902.68 : 65,868.80 = 13,921.83 : x
  2. Step 2: Convert to fraction form
    43,902.68/65,868.80 = 13,921.83/x
  3. Step 3: Cross multiply
    43,902.68x = 65,868.80 × 13,921.83
  4. Step 4: Simplify right side
    43,902.68x = 917,014,166.29
  5. Step 5: Solve for x
    x = 917,014,166.29/43,902.68
  6. Step 6: Final answer
    x = 20,887.43

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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.