Home / 39,981.14-59,983.69-11,902.17

Finding the Fourth Proportional to 39,981.14, 59,983.69 and 11,902.17

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Solution

The fourth proportional to 39,981.14, 59,983.69 and 11,902.17 is: 17,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.14 : 59,983.69 = 11,902.17 : x
  2. Step 2: Convert to fraction form
    39,981.14/59,983.69 = 11,902.17/x
  3. Step 3: Cross multiply
    39,981.14x = 59,983.69 × 11,902.17
  4. Step 4: Simplify right side
    39,981.14x = 713,936,045.85
  5. Step 5: Solve for x
    x = 713,936,045.85/39,981.14
  6. Step 6: Final answer
    x = 17,856.82

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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.