Home / 39,977.76-59,955.30-11,896.68

Finding the Fourth Proportional to 39,977.76, 59,955.30 and 11,896.68

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Solution

The fourth proportional to 39,977.76, 59,955.30 and 11,896.68 is: 17,841.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,977.76 : 59,955.30 = 11,896.68 : x
  2. Step 2: Convert to fraction form
    39,977.76/59,955.30 = 11,896.68/x
  3. Step 3: Cross multiply
    39,977.76x = 59,955.30 × 11,896.68
  4. Step 4: Simplify right side
    39,977.76x = 713,269,018.40
  5. Step 5: Solve for x
    x = 713,269,018.40/39,977.76
  6. Step 6: Final answer
    x = 17,841.65

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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.