Home / 28,911.80-43,346.68-19,528.56

Finding the Fourth Proportional to 28,911.80, 43,346.68 and 19,528.56

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Solution

The fourth proportional to 28,911.80, 43,346.68 and 19,528.56 is: 29,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.80 : 43,346.68 = 19,528.56 : x
  2. Step 2: Convert to fraction form
    28,911.80/43,346.68 = 19,528.56/x
  3. Step 3: Cross multiply
    28,911.80x = 43,346.68 × 19,528.56
  4. Step 4: Simplify right side
    28,911.80x = 846,498,241.18
  5. Step 5: Solve for x
    x = 846,498,241.18/28,911.80
  6. Step 6: Final answer
    x = 29,278.64

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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.