Home / 39,981.96-59,972.92-11,901.88

Finding the Fourth Proportional to 39,981.96, 59,972.92 and 11,901.88

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Solution

The fourth proportional to 39,981.96, 59,972.92 and 11,901.88 is: 17,852.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.96 : 59,972.92 = 11,901.88 : x
  2. Step 2: Convert to fraction form
    39,981.96/59,972.92 = 11,901.88/x
  3. Step 3: Cross multiply
    39,981.96x = 59,972.92 × 11,901.88
  4. Step 4: Simplify right side
    39,981.96x = 713,790,497.09
  5. Step 5: Solve for x
    x = 713,790,497.09/39,981.96
  6. Step 6: Final answer
    x = 17,852.81

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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.