Home / 43,456.51-65,179.32-13,871.89

Finding the Fourth Proportional to 43,456.51, 65,179.32 and 13,871.89

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Solution

The fourth proportional to 43,456.51, 65,179.32 and 13,871.89 is: 20,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,456.51 : 65,179.32 = 13,871.89 : x
  2. Step 2: Convert to fraction form
    43,456.51/65,179.32 = 13,871.89/x
  3. Step 3: Cross multiply
    43,456.51x = 65,179.32 × 13,871.89
  4. Step 4: Simplify right side
    43,456.51x = 904,160,357.31
  5. Step 5: Solve for x
    x = 904,160,357.31/43,456.51
  6. Step 6: Final answer
    x = 20,806.10

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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.