Home / 43,219.82-64,829.73-13,639.97

Finding the Fourth Proportional to 43,219.82, 64,829.73 and 13,639.97

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Solution

The fourth proportional to 43,219.82, 64,829.73 and 13,639.97 is: 20,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,219.82 : 64,829.73 = 13,639.97 : x
  2. Step 2: Convert to fraction form
    43,219.82/64,829.73 = 13,639.97/x
  3. Step 3: Cross multiply
    43,219.82x = 64,829.73 × 13,639.97
  4. Step 4: Simplify right side
    43,219.82x = 884,275,299.31
  5. Step 5: Solve for x
    x = 884,275,299.31/43,219.82
  6. Step 6: Final answer
    x = 20,459.95

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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.