Home / 43,957.12-65,947.20-19,338.88

Finding the Fourth Proportional to 43,957.12, 65,947.20 and 19,338.88

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Solution

The fourth proportional to 43,957.12, 65,947.20 and 19,338.88 is: 29,013.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,957.12 : 65,947.20 = 19,338.88 : x
  2. Step 2: Convert to fraction form
    43,957.12/65,947.20 = 19,338.88/x
  3. Step 3: Cross multiply
    43,957.12x = 65,947.20 × 19,338.88
  4. Step 4: Simplify right side
    43,957.12x = 1,275,344,987.14
  5. Step 5: Solve for x
    x = 1,275,344,987.14/43,957.12
  6. Step 6: Final answer
    x = 29,013.39

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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.