Home / 39,971.80-59,966.21-11,891.94

Finding the Fourth Proportional to 39,971.80, 59,966.21 and 11,891.94

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Solution

The fourth proportional to 39,971.80, 59,966.21 and 11,891.94 is: 17,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,971.80 : 59,966.21 = 11,891.94 : x
  2. Step 2: Convert to fraction form
    39,971.80/59,966.21 = 11,891.94/x
  3. Step 3: Cross multiply
    39,971.80x = 59,966.21 × 11,891.94
  4. Step 4: Simplify right side
    39,971.80x = 713,114,571.35
  5. Step 5: Solve for x
    x = 713,114,571.35/39,971.80
  6. Step 6: Final answer
    x = 17,840.44

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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.