Home / 39,977.94-59,969.79-11,513.73

Finding the Fourth Proportional to 39,977.94, 59,969.79 and 11,513.73

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Solution

The fourth proportional to 39,977.94, 59,969.79 and 11,513.73 is: 17,271.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,977.94 : 59,969.79 = 11,513.73 : x
  2. Step 2: Convert to fraction form
    39,977.94/59,969.79 = 11,513.73/x
  3. Step 3: Cross multiply
    39,977.94x = 59,969.79 × 11,513.73
  4. Step 4: Simplify right side
    39,977.94x = 690,475,890.16
  5. Step 5: Solve for x
    x = 690,475,890.16/39,977.94
  6. Step 6: Final answer
    x = 17,271.42

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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.